38787965 has 8 divisors (see below), whose sum is σ = 49283640. Its totient is φ = 29204992.

The previous prime is 38787961. The next prime is 38787979. The reversal of 38787965 is 56978783.

It can be written as a sum of positive squares in 4 ways, for example, as 2149156 + 36638809 = 1466^2 + 6053^2 .

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 38787965 - 2² = 38787961 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38787961) 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, 228080 + ... + 228249.

It is an arithmetic number, because the mean of its divisors is an integer number (6160455).

Almost surely, 2^38787965 is an apocalyptic number.

It is an amenable number.

38787965 is a deficient number, since it is larger than the sum of its proper divisors (10495675).

38787965 is a wasteful number, since it uses less digits than its factorization.

38787965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456351.

The product of its digits is 2540160, while the sum is 53.

The square root of 38787965 is about 6227.9984746305. The cubic root of 38787965 is about 338.5054497820.

The spelling of 38787965 in words is "thirty-eight million, seven hundred eighty-seven thousand, nine hundred sixty-five".