38903457 has 4 divisors (see below), whose sum is σ = 51871280. Its totient is φ = 25935636.

The previous prime is 38903443. The next prime is 38903467. The reversal of 38903457 is 75430983.

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.

It is not a de Polignac number, because 38903457 - 2⁴ = 38903441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38903437) 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, 6483907 + ... + 6483912.

It is an arithmetic number, because the mean of its divisors is an integer number (12967820).

Almost surely, 2^38903457 is an apocalyptic number.

It is an amenable number.

38903457 is a deficient number, since it is larger than the sum of its proper divisors (12967823).

38903457 is a wasteful number, since it uses less digits than its factorization.

38903457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12967822.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 38903457 is about 6237.2635826939. The cubic root of 38903457 is about 338.8410859664.

The spelling of 38903457 in words is "thirty-eight million, nine hundred three thousand, four hundred fifty-seven".