38557797 has 8 divisors (see below), whose sum is σ = 52114944. Its totient is φ = 25352928.

The previous prime is 38557793. The next prime is 38557817. The reversal of 38557797 is 79775583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38557797 - 2² = 38557793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38557793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87813 + ... + 88250.

It is an arithmetic number, because the mean of its divisors is an integer number (6514368).

Almost surely, 2^38557797 is an apocalyptic number.

It is an amenable number.

38557797 is a deficient number, since it is larger than the sum of its proper divisors (13557147).

38557797 is a wasteful number, since it uses less digits than its factorization.

38557797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176139.

The product of its digits is 1852200, while the sum is 51.

The square root of 38557797 is about 6209.4924913394. The cubic root of 38557797 is about 337.8345565918.

The spelling of 38557797 in words is "thirty-eight million, five hundred fifty-seven thousand, seven hundred ninety-seven".