86409730 has 24 divisors (see below), whose sum is σ = 170965116. Its totient is φ = 31421280.

The previous prime is 86409703. The next prime is 86409731. The reversal of 86409730 is 3790468.

It can be written as a sum of positive squares in 2 ways, for example, as 85988529 + 421201 = 9273^2 + 649^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86409730.

It is not an unprimeable number, because it can be changed into a prime (86409731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34497 + ... + 36916.

Almost surely, 2^86409730 is an apocalyptic number.

86409730 is a deficient number, since it is larger than the sum of its proper divisors (84555386).

86409730 is a wasteful number, since it uses less digits than its factorization.

86409730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71442 (or 71431 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 86409730 is about 9295.6834068292. The cubic root of 86409730 is about 442.1003744114.

The spelling of 86409730 in words is "eighty-six million, four hundred nine thousand, seven hundred thirty".