87240830 has 16 divisors (see below), whose sum is σ = 158654160. Its totient is φ = 34536192.

The previous prime is 87240827. The next prime is 87240847. The reversal of 87240830 is 3804278.

It is a super-2 number, since 2×87240830² = 15221924838177800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44000 + ... + 45939.

It is an arithmetic number, because the mean of its divisors is an integer number (9915885).

Almost surely, 2^87240830 is an apocalyptic number.

87240830 is a deficient number, since it is larger than the sum of its proper divisors (71413330).

87240830 is a wasteful number, since it uses less digits than its factorization.

87240830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90043.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 87240830 is about 9340.2799743905. The cubic root of 87240830 is about 443.5132472454.

The spelling of 87240830 in words is "eighty-seven million, two hundred forty thousand, eight hundred thirty".