38958197 has 4 divisors (see below), whose sum is σ = 39506976. Its totient is φ = 38409420.

The previous prime is 38958193. The next prime is 38958229. The reversal of 38958197 is 79185983.

38958197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79185983 = 17 ⋅4657999.

It is a cyclic number.

It is not a de Polignac number, because 38958197 - 2² = 38958193 is a prime.

It is a super-2 number, since 2×38958197² = 3035482226981618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38958191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274283 + ... + 274424.

It is an arithmetic number, because the mean of its divisors is an integer number (9876744).

Almost surely, 2^38958197 is an apocalyptic number.

It is an amenable number.

38958197 is a deficient number, since it is larger than the sum of its proper divisors (548779).

38958197 is an equidigital number, since it uses as much as digits as its factorization.

38958197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548778.

The product of its digits is 544320, while the sum is 50.

The square root of 38958197 is about 6241.6501824437. The cubic root of 38958197 is about 338.9999361880. Note that the first 4 decimals are identical.

The spelling of 38958197 in words is "thirty-eight million, nine hundred fifty-eight thousand, one hundred ninety-seven".