97160778 has 48 divisors (see below), whose sum is σ = 247324896. Its totient is φ = 27177120.

The previous prime is 97160773. The next prime is 97160783. The reversal of 97160778 is 87706179.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (97160773) and next prime (97160783).

It is not an unprimeable number, because it can be changed into a prime (97160771) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 16300 + ... + 21447.

It is an arithmetic number, because the mean of its divisors is an integer number (5152602).

Almost surely, 2^97160778 is an apocalyptic number.

97160778 is an abundant number, since it is smaller than the sum of its proper divisors (150164118).

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

97160778 is a wasteful number, since it uses less digits than its factorization.

97160778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37779 (or 37776 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 97160778 is about 9857.0166886335. The cubic root of 97160778 is about 459.7238071065.

The spelling of 97160778 in words is "ninety-seven million, one hundred sixty thousand, seven hundred seventy-eight".