97077816 has 96 divisors (see below), whose sum is σ = 289476720. Its totient is φ = 29388480.

The previous prime is 97077797. The next prime is 97077817. The reversal of 97077816 is 61877079.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97077817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95326 + ... + 96338.

Almost surely, 2^97077816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97077816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144738360).

97077816 is an abundant number, since it is smaller than the sum of its proper divisors (192398904).

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

97077816 is a wasteful number, since it uses less digits than its factorization.

97077816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058 (or 1029 counting only the distinct ones).

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

The square root of 97077816 is about 9852.8075186720. The cubic root of 97077816 is about 459.5929227869.

The spelling of 97077816 in words is "ninety-seven million, seventy-seven thousand, eight hundred sixteen".