86430638 has 16 divisors (see below), whose sum is σ = 148595040. Its totient is φ = 36934656.

The previous prime is 86430623. The next prime is 86430647. The reversal of 86430638 is 83603468.

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, 3803 + ... + 13686.

It is an arithmetic number, because the mean of its divisors is an integer number (9287190).

Almost surely, 2^86430638 is an apocalyptic number.

86430638 is a deficient number, since it is larger than the sum of its proper divisors (62164402).

86430638 is a wasteful number, since it uses less digits than its factorization.

86430638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17851.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 86430638 is about 9296.8079468170. The cubic root of 86430638 is about 442.1360289193.

The spelling of 86430638 in words is "eighty-six million, four hundred thirty thousand, six hundred thirty-eight".