38772997 has 4 divisors (see below), whose sum is σ = 38796460. Its totient is φ = 38749536.

The previous prime is 38772959. The next prime is 38773027. The reversal of 38772997 is 79927783.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37625956 + 1147041 = 6134^2 + 1071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38772997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38772947) 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 3 ways as a sum of consecutive naturals, for example, 9048 + ... + 12625.

It is an arithmetic number, because the mean of its divisors is an integer number (9699115).

Almost surely, 2^38772997 is an apocalyptic number.

It is an amenable number.

38772997 is a deficient number, since it is larger than the sum of its proper divisors (23463).

38772997 is a wasteful number, since it uses less digits than its factorization.

38772997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23462.

The product of its digits is 1333584, while the sum is 52.

The square root of 38772997 is about 6226.7966885069. The cubic root of 38772997 is about 338.4619018975.

The spelling of 38772997 in words is "thirty-eight million, seven hundred seventy-two thousand, nine hundred ninety-seven".