38700557 has 8 divisors (see below), whose sum is σ = 45424896. Its totient is φ = 32275152.

The previous prime is 38700523. The next prime is 38700577. The reversal of 38700557 is 75500783.

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

It is not a de Polignac number, because 38700557 - 2¹⁰ = 38699533 is a prime.

It is a super-2 number, since 2×38700557² = 2995466224220498, 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 (38700577) 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, 74453 + ... + 74970.

It is an arithmetic number, because the mean of its divisors is an integer number (5678112).

Almost surely, 2^38700557 is an apocalyptic number.

38700557 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

38700557 is a deficient number, since it is larger than the sum of its proper divisors (6724339).

38700557 is a wasteful number, since it uses less digits than its factorization.

38700557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149467.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 38700557 is about 6220.9771740459. The cubic root of 38700557 is about 338.2509865085.

The spelling of 38700557 in words is "thirty-eight million, seven hundred thousand, five hundred fifty-seven".