97619620 has 96 divisors (see below), whose sum is σ = 245661696. Its totient is φ = 31881600.

The previous prime is 97619609. The next prime is 97619623. The reversal of 97619620 is 2691679.

It is not an unprimeable number, because it can be changed into a prime (97619623) 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 31 ways as a sum of consecutive naturals, for example, 360085 + ... + 360355.

It is an arithmetic number, because the mean of its divisors is an integer number (2558976).

Almost surely, 2^97619620 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 97619620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122830848).

97619620 is an abundant number, since it is smaller than the sum of its proper divisors (148042076).

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

97619620 is a wasteful number, since it uses less digits than its factorization.

97619620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 97619620 is about 9880.2641665089. The cubic root of 97619620 is about 460.4463531382.

The spelling of 97619620 in words is "ninety-seven million, six hundred nineteen thousand, six hundred twenty".