97727775 has 12 divisors (see below), whose sum is σ = 161576712. Its totient is φ = 52121440.

The previous prime is 97727761. The next prime is 97727807. The reversal of 97727775 is 57772779.

It is not a de Polignac number, because 97727775 - 2⁷ = 97727647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 651444 + ... + 651593.

It is an arithmetic number, because the mean of its divisors is an integer number (13464726).

Almost surely, 2^97727775 is an apocalyptic number.

97727775 is a deficient number, since it is larger than the sum of its proper divisors (63848937).

97727775 is a wasteful number, since it uses less digits than its factorization.

97727775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303050 (or 1303045 counting only the distinct ones).

The product of its digits is 1512630, while the sum is 51.

The square root of 97727775 is about 9885.7359361860. The cubic root of 97727775 is about 460.6163367107.

The spelling of 97727775 in words is "ninety-seven million, seven hundred twenty-seven thousand, seven hundred seventy-five".