93720971 has 2 divisors, whose sum is σ = 93720972. Its totient is φ = 93720970.

The previous prime is 93720943. The next prime is 93720989. The reversal of 93720971 is 17902739.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 93720971 - 2¹⁴ = 93704587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (93720911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46860485 + 46860486.

It is an arithmetic number, because the mean of its divisors is an integer number (46860486).

Almost surely, 2^93720971 is an apocalyptic number.

93720971 is a deficient number, since it is larger than the sum of its proper divisors (1).

93720971 is an equidigital number, since it uses as much as digits as its factorization.

93720971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 93720971 is about 9680.9591983439. The cubic root of 93720971 is about 454.2332551955.

The spelling of 93720971 in words is "ninety-three million, seven hundred twenty thousand, nine hundred seventy-one".