38790057 has 4 divisors (see below), whose sum is σ = 51720080. Its totient is φ = 25860036.

The previous prime is 38790053. The next prime is 38790061. The reversal of 38790057 is 75009783.

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 an interprime number because it is at equal distance from previous prime (38790053) and next prime (38790061).

It is not a de Polignac number, because 38790057 - 2² = 38790053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38789997 and 38790024.

It is not an unprimeable number, because it can be changed into a prime (38790053) 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, 6465007 + ... + 6465012.

It is an arithmetic number, because the mean of its divisors is an integer number (12930020).

Almost surely, 2^38790057 is an apocalyptic number.

It is an amenable number.

38790057 is a deficient number, since it is larger than the sum of its proper divisors (12930023).

38790057 is a wasteful number, since it uses less digits than its factorization.

38790057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12930022.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 38790057 is about 6228.1664235953. The cubic root of 38790057 is about 338.5115353523.

The spelling of 38790057 in words is "thirty-eight million, seven hundred ninety thousand, fifty-seven".