38485397 has 4 divisors (see below), whose sum is σ = 38498700. Its totient is φ = 38472096.

The previous prime is 38485379. The next prime is 38485409. The reversal of 38485397 is 79358483.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79358483 = 137 ⋅579259.

It can be written as a sum of positive squares in 2 ways, for example, as 17380561 + 21104836 = 4169^2 + 4594^2 .

It is a cyclic number.

It is not a de Polignac number, because 38485397 - 2¹⁰ = 38484373 is a prime.

It is a super-2 number, since 2×38485397² = 2962251564495218, 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 (38485597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272 + ... + 8777.

It is an arithmetic number, because the mean of its divisors is an integer number (9624675).

Almost surely, 2^38485397 is an apocalyptic number.

It is an amenable number.

38485397 is a deficient number, since it is larger than the sum of its proper divisors (13303).

38485397 is an equidigital number, since it uses as much as digits as its factorization.

38485397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13302.

The product of its digits is 725760, while the sum is 47.

The square root of 38485397 is about 6203.6599681156. The cubic root of 38485397 is about 337.6229733857.

The spelling of 38485397 in words is "thirty-eight million, four hundred eighty-five thousand, three hundred ninety-seven".