85090499 has 4 divisors (see below), whose sum is σ = 91635936. Its totient is φ = 78545064.

The previous prime is 85090487. The next prime is 85090513. The reversal of 85090499 is 99409058.

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

It is not a de Polignac number, because 85090499 - 2⁴ = 85090483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85090429) 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, 3272699 + ... + 3272724.

It is an arithmetic number, because the mean of its divisors is an integer number (22908984).

Almost surely, 2^85090499 is an apocalyptic number.

85090499 is a deficient number, since it is larger than the sum of its proper divisors (6545437).

85090499 is a wasteful number, since it uses less digits than its factorization.

85090499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6545436.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 85090499 is about 9224.4511489844. The cubic root of 85090499 is about 439.8389544923.

It can be divided in two parts, 8509049 and 9, that added together give a palindrome (8509058).

The spelling of 85090499 in words is "eighty-five million, ninety thousand, four hundred ninety-nine".