72395867 has 2 divisors, whose sum is σ = 72395868. Its totient is φ = 72395866.

The previous prime is 72395857. The next prime is 72395899. The reversal of 72395867 is 76859327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72395867 - 2¹² = 72391771 is a prime.

It is not a weakly prime, because it can be changed into another prime (72395857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36197933 + 36197934.

It is an arithmetic number, because the mean of its divisors is an integer number (36197934).

Almost surely, 2^72395867 is an apocalyptic number.

72395867 is a deficient number, since it is larger than the sum of its proper divisors (1).

72395867 is an equidigital number, since it uses as much as digits as its factorization.

72395867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The square root of 72395867 is about 8508.5760853388. The cubic root of 72395867 is about 416.7778127668. Note that the first 3 decimals are identical.

The spelling of 72395867 in words is "seventy-two million, three hundred ninety-five thousand, eight hundred sixty-seven".