97778680 has 16 divisors (see below), whose sum is σ = 220002120. Its totient is φ = 39111456.

The previous prime is 97778677. The next prime is 97778699. The reversal of 97778680 is 8687779.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222194 + ... + 1222273.

Almost surely, 2^97778680 is an apocalyptic number.

It is an amenable number.

97778680 is an abundant number, since it is smaller than the sum of its proper divisors (122223440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97778680 is a wasteful number, since it uses less digits than its factorization.

97778680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444478 (or 2444474 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 52.

The square root of 97778680 is about 9888.3102702130. The cubic root of 97778680 is about 460.6962989822.

The spelling of 97778680 in words is "ninety-seven million, seven hundred seventy-eight thousand, six hundred eighty".