97118971 has 2 divisors, whose sum is σ = 97118972. Its totient is φ = 97118970.

The previous prime is 97118963. The next prime is 97118993. The reversal of 97118971 is 17981179.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97118971 - 2³ = 97118963 is a prime.

It is not a weakly prime, because it can be changed into another prime (97118911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48559485 + 48559486.

It is an arithmetic number, because the mean of its divisors is an integer number (48559486).

Almost surely, 2^97118971 is an apocalyptic number.

97118971 is a deficient number, since it is larger than the sum of its proper divisors (1).

97118971 is an equidigital number, since it uses as much as digits as its factorization.

97118971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 43.

The square root of 97118971 is about 9854.8957883886. The cubic root of 97118971 is about 459.6578599520.

It can be divided in two parts, 97118 and 971, that added together give a palindrome (98089).

The spelling of 97118971 in words is "ninety-seven million, one hundred eighteen thousand, nine hundred seventy-one".