87439088 has 20 divisors (see below), whose sum is σ = 184814808. Its totient is φ = 39744960.

The previous prime is 87439073. The next prime is 87439091. The reversal of 87439088 is 88093478.

It is a super-2 number, since 2×87439088² = 15291188220543488, 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 3 ways as a sum of consecutive naturals, for example, 248231 + ... + 248582.

Almost surely, 2^87439088 is an apocalyptic number.

87439088 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

87439088 is an abundant number, since it is smaller than the sum of its proper divisors (97375720).

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

87439088 is a wasteful number, since it uses less digits than its factorization.

87439088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496832 (or 496826 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 87439088 is about 9350.8870167487. The cubic root of 87439088 is about 443.8489597982.

It can be divided in two parts, 874390 and 88, that added together give a palindrome (874478).

The spelling of 87439088 in words is "eighty-seven million, four hundred thirty-nine thousand, eighty-eight".