38247493 has 4 divisors (see below), whose sum is σ = 38293920. Its totient is φ = 38201068.

The previous prime is 38247481. The next prime is 38247497. The reversal of 38247493 is 39474283.

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: 39474283 = 4133 ⋅9551.

It is a cyclic number.

It is not a de Polignac number, because 38247493 - 2¹³ = 38239301 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38247497) 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, 21955 + ... + 23632.

It is an arithmetic number, because the mean of its divisors is an integer number (9573480).

Almost surely, 2^38247493 is an apocalyptic number.

It is an amenable number.

38247493 is a deficient number, since it is larger than the sum of its proper divisors (46427).

38247493 is an equidigital number, since it uses as much as digits as its factorization.

38247493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46426.

The product of its digits is 145152, while the sum is 40.

The square root of 38247493 is about 6184.4557561680. The cubic root of 38247493 is about 336.9258437331.

The spelling of 38247493 in words is "thirty-eight million, two hundred forty-seven thousand, four hundred ninety-three".