97455921 has 36 divisors (see below), whose sum is σ = 143359632. Its totient is φ = 58873248.

The previous prime is 97455913. The next prime is 97455947. The reversal of 97455921 is 12955479.

It is not a de Polignac number, because 97455921 - 2³ = 97455913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97455961) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 910750 + ... + 910856.

It is an arithmetic number, because the mean of its divisors is an integer number (3982212).

Almost surely, 2^97455921 is an apocalyptic number.

It is an amenable number.

97455921 is a deficient number, since it is larger than the sum of its proper divisors (45903711).

97455921 is a wasteful number, since it uses less digits than its factorization.

97455921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 158 counting only the distinct ones).

The product of its digits is 113400, while the sum is 42.

The square root of 97455921 is about 9871.9765498101. The cubic root of 97455921 is about 460.1888339396.

The spelling of 97455921 in words is "ninety-seven million, four hundred fifty-five thousand, nine hundred twenty-one".