97122921 has 16 divisors (see below), whose sum is σ = 156703104. Its totient is φ = 52233984.

The previous prime is 97122911. The next prime is 97122929. The reversal of 97122921 is 12922179.

It is not a de Polignac number, because 97122921 - 2¹³ = 97114729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97122929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135670 + ... + 136383.

It is an arithmetic number, because the mean of its divisors is an integer number (9793944).

Almost surely, 2^97122921 is an apocalyptic number.

It is an amenable number.

97122921 is a deficient number, since it is larger than the sum of its proper divisors (59580183).

97122921 is a wasteful number, since it uses less digits than its factorization.

97122921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272080.

The product of its digits is 4536, while the sum is 33.

The square root of 97122921 is about 9855.0961943555. The cubic root of 97122921 is about 459.6640915664.

The spelling of 97122921 in words is "ninety-seven million, one hundred twenty-two thousand, nine hundred twenty-one".