38915867 has 2 divisors, whose sum is σ = 38915868. Its totient is φ = 38915866.

The previous prime is 38915861. The next prime is 38915879. The reversal of 38915867 is 76851983.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38915867 - 2¹² = 38911771 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38915861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19457933 + 19457934.

It is an arithmetic number, because the mean of its divisors is an integer number (19457934).

Almost surely, 2^38915867 is an apocalyptic number.

38915867 is a deficient number, since it is larger than the sum of its proper divisors (1).

38915867 is an equidigital number, since it uses as much as digits as its factorization.

38915867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 38915867 is about 6238.2583306561. The cubic root of 38915867 is about 338.8771116494.

The spelling of 38915867 in words is "thirty-eight million, nine hundred fifteen thousand, eight hundred sixty-seven".