88990686 has 12 divisors (see below), whose sum is σ = 192813192. Its totient is φ = 29663556.

The previous prime is 88990669. The next prime is 88990687. The reversal of 88990686 is 68609988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88990687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2471946 + ... + 2471981.

It is an arithmetic number, because the mean of its divisors is an integer number (16067766).

Almost surely, 2^88990686 is an apocalyptic number.

88990686 is an abundant number, since it is smaller than the sum of its proper divisors (103822506).

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

88990686 is a wasteful number, since it uses less digits than its factorization.

88990686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4943935 (or 4943932 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 88990686 is about 9433.4874781281. The cubic root of 88990686 is about 446.4589342451.

It can be divided in two parts, 88990 and 686, that added together give a triangular number (89676 = T₄₂₃).

The spelling of 88990686 in words is "eighty-eight million, nine hundred ninety thousand, six hundred eighty-six".