86252890 has 8 divisors (see below), whose sum is σ = 155255220. Its totient is φ = 34501152.

The previous prime is 86252863. The next prime is 86252977. The reversal of 86252890 is 9825268.

It can be written as a sum of positive squares in 2 ways, for example, as 84805681 + 1447209 = 9209^2 + 1203^2 .

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

It is a super-2 number, since 2×86252890² = 14879122066704200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4312635 + ... + 4312654.

Almost surely, 2^86252890 is an apocalyptic number.

86252890 is a deficient number, since it is larger than the sum of its proper divisors (69002330).

86252890 is a wasteful number, since it uses less digits than its factorization.

86252890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8625296.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 86252890 is about 9287.2434015697. The cubic root of 86252890 is about 441.8327308760.

The spelling of 86252890 in words is "eighty-six million, two hundred fifty-two thousand, eight hundred ninety".