86430788 has 48 divisors (see below), whose sum is σ = 169873200. Its totient is φ = 38277120.

The previous prime is 86430749. The next prime is 86430793. The reversal of 86430788 is 88703468.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1643524 + 84787264 = 1282^2 + 9208^2 .

It is a super-2 number, since 2×86430788² = 14940562228601888, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80318 + ... + 81386.

It is an arithmetic number, because the mean of its divisors is an integer number (3539025).

Almost surely, 2^86430788 is an apocalyptic number.

It is an amenable number.

86430788 is a deficient number, since it is larger than the sum of its proper divisors (83442412).

86430788 is a wasteful number, since it uses less digits than its factorization.

86430788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 86430788 is about 9296.8160140986. The cubic root of 86430788 is about 442.1362846942.

The spelling of 86430788 in words is "eighty-six million, four hundred thirty thousand, seven hundred eighty-eight".