97939878 has 8 divisors (see below), whose sum is σ = 195879768. Its totient is φ = 32646624.

The previous prime is 97939859. The next prime is 97939883. The reversal of 97939878 is 87893979.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

97939878 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8161651 + ... + 8161662.

It is an arithmetic number, because the mean of its divisors is an integer number (24484971).

Almost surely, 2^97939878 is an apocalyptic number.

97939878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

97939878 is a wasteful number, since it uses less digits than its factorization.

97939878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16323318.

The product of its digits is 6858432, while the sum is 60.

The square root of 97939878 is about 9896.4578511708. The cubic root of 97939878 is about 460.9493280650.

The spelling of 97939878 in words is "ninety-seven million, nine hundred thirty-nine thousand, eight hundred seventy-eight".