86580938 has 4 divisors (see below), whose sum is σ = 129871410. Its totient is φ = 43290468.

The previous prime is 86580931. The next prime is 86580961. The reversal of 86580938 is 83908568.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65723449 + 20857489 = 8107^2 + 4567^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86580892 and 86580901.

It is not an unprimeable number, because it can be changed into a prime (86580931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21645233 + ... + 21645236.

Almost surely, 2^86580938 is an apocalyptic number.

86580938 is a deficient number, since it is larger than the sum of its proper divisors (43290472).

86580938 is a wasteful number, since it uses less digits than its factorization.

86580938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43290471.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 86580938 is about 9304.8878553156. The cubic root of 86580938 is about 442.3921671128.

The spelling of 86580938 in words is "eighty-six million, five hundred eighty thousand, nine hundred thirty-eight".