97888977 has 12 divisors (see below), whose sum is σ = 142346100. Its totient is φ = 64820448.

The previous prime is 97888961. The next prime is 97888981. The reversal of 97888977 is 77988879.

It can be written as a sum of positive squares in 2 ways, for example, as 20466576 + 77422401 = 4524^2 + 8799^2 .

It is not a de Polignac number, because 97888977 - 2⁴ = 97888961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97888927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35158 + ... + 37839.

It is an arithmetic number, because the mean of its divisors is an integer number (11862175).

Almost surely, 2^97888977 is an apocalyptic number.

It is an amenable number.

97888977 is a deficient number, since it is larger than the sum of its proper divisors (44457123).

97888977 is a wasteful number, since it uses less digits than its factorization.

97888977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73152 (or 73149 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 63.

The square root of 97888977 is about 9893.8858392444. The cubic root of 97888977 is about 460.8694598571.

The spelling of 97888977 in words is "ninety-seven million, eight hundred eighty-eight thousand, nine hundred seventy-seven".