97391616 has 132 divisors (see below), whose sum is σ = 302431968. Its totient is φ = 27783168.

The previous prime is 97391611. The next prime is 97391627. The reversal of 97391616 is 61619379.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97391611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150205 + ... + 150851.

Almost surely, 2^97391616 is an apocalyptic number.

97391616 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97391616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151215984).

97391616 is an abundant number, since it is smaller than the sum of its proper divisors (205040352).

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

97391616 is a wasteful number, since it uses less digits than its factorization.

97391616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 659 counting only the distinct ones).

The product of its digits is 61236, while the sum is 42.

The square root of 97391616 is about 9868.7190658160. The cubic root of 97391616 is about 460.0875951649.

The spelling of 97391616 in words is "ninety-seven million, three hundred ninety-one thousand, six hundred sixteen".