85490590 has 16 divisors (see below), whose sum is σ = 156787488. Its totient is φ = 33550816.

The previous prime is 85490567. The next prime is 85490611. The reversal of 85490590 is 9509458.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80122 + ... + 81181.

It is an arithmetic number, because the mean of its divisors is an integer number (9799218).

Almost surely, 2^85490590 is an apocalyptic number.

85490590 is a deficient number, since it is larger than the sum of its proper divisors (71296898).

85490590 is a wasteful number, since it uses less digits than its factorization.

85490590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161363.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 85490590 is about 9246.1121559280. The cubic root of 85490590 is about 440.5272433068.

The spelling of 85490590 in words is "eighty-five million, four hundred ninety thousand, five hundred ninety".