86630890 has 8 divisors (see below), whose sum is σ = 155935620. Its totient is φ = 34652352.

The previous prime is 86630881. The next prime is 86630897. The reversal of 86630890 is 9803668.

It can be written as a sum of positive squares in 2 ways, for example, as 83557881 + 3073009 = 9141^2 + 1753^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×86630890² = 15009822204384200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86630897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4331535 + ... + 4331554.

Almost surely, 2^86630890 is an apocalyptic number.

86630890 is a deficient number, since it is larger than the sum of its proper divisors (69304730).

86630890 is a wasteful number, since it uses less digits than its factorization.

86630890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8663096.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 86630890 is about 9307.5716489319. The cubic root of 86630890 is about 442.4772286578.

The spelling of 86630890 in words is "eighty-six million, six hundred thirty thousand, eight hundred ninety".