72927571 has 2 divisors, whose sum is σ = 72927572. Its totient is φ = 72927570.

The previous prime is 72927541. The next prime is 72927577. The reversal of 72927571 is 17572927.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72927571 - 2⁷ = 72927443 is a prime.

It is a super-2 number, since 2×72927571² = 10636861223920082, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72927577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36463785 + 36463786.

It is an arithmetic number, because the mean of its divisors is an integer number (36463786).

Almost surely, 2^72927571 is an apocalyptic number.

72927571 is a deficient number, since it is larger than the sum of its proper divisors (1).

72927571 is an equidigital number, since it uses as much as digits as its factorization.

72927571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61740, while the sum is 40.

The square root of 72927571 is about 8539.7641068123. The cubic root of 72927571 is about 417.7956522745.

The spelling of 72927571 in words is "seventy-two million, nine hundred twenty-seven thousand, five hundred seventy-one".