87430998 has 32 divisors (see below), whose sum is σ = 184757760. Its totient is φ = 27537440.

The previous prime is 87430961. The next prime is 87430999. The reversal of 87430998 is 89903478.

It is a super-2 number, since 2×87430998² = 15288358822552008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87430999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2833 + ... + 13523.

It is an arithmetic number, because the mean of its divisors is an integer number (5773680).

Almost surely, 2^87430998 is an apocalyptic number.

87430998 is an abundant number, since it is smaller than the sum of its proper divisors (97326762).

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

87430998 is a wasteful number, since it uses less digits than its factorization.

87430998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10772.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 87430998 is about 9350.4544274597. The cubic root of 87430998 is about 443.8352708447.

The spelling of 87430998 in words is "eighty-seven million, four hundred thirty thousand, nine hundred ninety-eight".