97621271 has 4 divisors (see below), whose sum is σ = 106495944. Its totient is φ = 88746600.

The previous prime is 97621261. The next prime is 97621273. The reversal of 97621271 is 17212679.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97621271 - 2²² = 93426967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97621273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4437320 + ... + 4437341.

It is an arithmetic number, because the mean of its divisors is an integer number (26623986).

Almost surely, 2^97621271 is an apocalyptic number.

97621271 is a deficient number, since it is larger than the sum of its proper divisors (8874673).

97621271 is a wasteful number, since it uses less digits than its factorization.

97621271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8874672.

The product of its digits is 10584, while the sum is 35.

The square root of 97621271 is about 9880.3477165533. The cubic root of 97621271 is about 460.4489489027.

The spelling of 97621271 in words is "ninety-seven million, six hundred twenty-one thousand, two hundred seventy-one".