97677138 has 64 divisors (see below), whose sum is σ = 234541440. Its totient is φ = 26790912.

The previous prime is 97677127. The next prime is 97677143. The reversal of 97677138 is 83177679.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23256 + ... + 27132.

It is an arithmetic number, because the mean of its divisors is an integer number (3664710).

Almost surely, 2^97677138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97677138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117270720).

97677138 is an abundant number, since it is smaller than the sum of its proper divisors (136864302).

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

97677138 is a wasteful number, since it uses less digits than its factorization.

97677138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3931.

The product of its digits is 444528, while the sum is 48.

The square root of 97677138 is about 9883.1744900108. The cubic root of 97677138 is about 460.5367678641.

The spelling of 97677138 in words is "ninety-seven million, six hundred seventy-seven thousand, one hundred thirty-eight".