85446590 has 32 divisors (see below), whose sum is σ = 166652640. Its totient is φ = 31417344.

The previous prime is 85446577. The next prime is 85446601. The reversal of 85446590 is 9564458.

It is a happy number.

It is a super-2 number, since 2×85446590² = 14602239485256200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1466 + ... + 13154.

It is an arithmetic number, because the mean of its divisors is an integer number (5207895).

Almost surely, 2^85446590 is an apocalyptic number.

85446590 is a deficient number, since it is larger than the sum of its proper divisors (81206050).

85446590 is a wasteful number, since it uses less digits than its factorization.

85446590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11756.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 85446590 is about 9243.7324712477. The cubic root of 85446590 is about 440.4516539933.

The spelling of 85446590 in words is "eighty-five million, four hundred forty-six thousand, five hundred ninety".