97977873 has 16 divisors (see below), whose sum is σ = 149438336. Its totient is φ = 55935360.

The previous prime is 97977871. The next prime is 97977877. The reversal of 97977873 is 37877979.

It is not a de Polignac number, because 97977873 - 2¹ = 97977871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97977871) 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, 40683 + ... + 43023.

It is an arithmetic number, because the mean of its divisors is an integer number (9339896).

Almost surely, 2^97977873 is an apocalyptic number.

It is an amenable number.

97977873 is a deficient number, since it is larger than the sum of its proper divisors (51460463).

97977873 is a wasteful number, since it uses less digits than its factorization.

97977873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344.

The product of its digits is 4667544, while the sum is 57.

The square root of 97977873 is about 9898.3772912533. The cubic root of 97977873 is about 461.0089275723.

The spelling of 97977873 in words is "ninety-seven million, nine hundred seventy-seven thousand, eight hundred seventy-three".