97829988 has 24 divisors (see below), whose sum is σ = 233579808. Its totient is φ = 31851456.

The previous prime is 97829981. The next prime is 97829989. The reversal of 97829988 is 88992879.

It is not an unprimeable number, because it can be changed into a prime (97829981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94281 + ... + 95312.

It is an arithmetic number, because the mean of its divisors is an integer number (9732492).

Almost surely, 2^97829988 is an apocalyptic number.

It is an amenable number.

97829988 is an abundant number, since it is smaller than the sum of its proper divisors (135749820).

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

97829988 is a wasteful number, since it uses less digits than its factorization.

97829988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189643 (or 189641 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 60.

The square root of 97829988 is about 9890.9043064828. The cubic root of 97829988 is about 460.7768662130.

The spelling of 97829988 in words is "ninety-seven million, eight hundred twenty-nine thousand, nine hundred eighty-eight".