97929930 has 128 divisors (see below), whose sum is σ = 283852800. Its totient is φ = 21591360.

The previous prime is 97929919. The next prime is 97929941. The reversal of 97929930 is 3992979.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (97929919) and next prime (97929941).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 97929930.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 318837 + ... + 319143.

It is an arithmetic number, because the mean of its divisors is an integer number (2217600).

Almost surely, 2^97929930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97929930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141926400).

97929930 is an abundant number, since it is smaller than the sum of its proper divisors (185922870).

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

97929930 is a wasteful number, since it uses less digits than its factorization.

97929930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 275562, while the sum is 48.

The square root of 97929930 is about 9895.9552343369. The cubic root of 97929930 is about 460.9337209419.

The spelling of 97929930 in words is "ninety-seven million, nine hundred twenty-nine thousand, nine hundred thirty".