85390082 has 8 divisors (see below), whose sum is σ = 135619596. Its totient is φ = 40183552.

The previous prime is 85390069. The next prime is 85390087. The reversal of 85390082 is 28009358.

It can be written as a sum of positive squares in 2 ways, for example, as 82428241 + 2961841 = 9079^2 + 1721^2 .

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

It is a super-2 number, since 2×85390082² = 14582932207933448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85390087) 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, 1255703 + ... + 1255770.

Almost surely, 2^85390082 is an apocalyptic number.

85390082 is a deficient number, since it is larger than the sum of its proper divisors (50229514).

85390082 is a wasteful number, since it uses less digits than its factorization.

85390082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511492.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 85390082 is about 9240.6754082156. The cubic root of 85390082 is about 440.3545386270.

The spelling of 85390082 in words is "eighty-five million, three hundred ninety thousand, eighty-two".