38400977 has 8 divisors (see below), whose sum is σ = 40715136. Its totient is φ = 36092992.

The previous prime is 38400941. The next prime is 38400997. The reversal of 38400977 is 77900483.

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

It is a cyclic number.

It is not a de Polignac number, because 38400977 - 2¹² = 38396881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38400977.

It is not an unprimeable number, because it can be changed into a prime (38400997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19868 + ... + 21714.

It is an arithmetic number, because the mean of its divisors is an integer number (5089392).

Almost surely, 2^38400977 is an apocalyptic number.

It is an amenable number.

38400977 is a deficient number, since it is larger than the sum of its proper divisors (2314159).

38400977 is a wasteful number, since it uses less digits than its factorization.

38400977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 38400977 is about 6196.8521847790. The cubic root of 38400977 is about 337.3759273246.

The spelling of 38400977 in words is "thirty-eight million, four hundred thousand, nine hundred seventy-seven".