97784925 has 48 divisors (see below), whose sum is σ = 194511360. Its totient is φ = 42344640.

The previous prime is 97784917. The next prime is 97784977. The reversal of 97784925 is 52948779.

It is not a de Polignac number, because 97784925 - 2³ = 97784917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5074 + ... + 14876.

It is an arithmetic number, because the mean of its divisors is an integer number (4052320).

Almost surely, 2^97784925 is an apocalyptic number.

97784925 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

97784925 is a deficient number, since it is larger than the sum of its proper divisors (96726435).

97784925 is a wasteful number, since it uses less digits than its factorization.

97784925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9842 (or 9837 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 51.

The square root of 97784925 is about 9888.6260420748. The cubic root of 97784925 is about 460.7061068024.

The spelling of 97784925 in words is "ninety-seven million, seven hundred eighty-four thousand, nine hundred twenty-five".