90806470 has 16 divisors (see below), whose sum is σ = 163578528. Its totient is φ = 36294400.

The previous prime is 90806467. The next prime is 90806501. The reversal of 90806470 is 7460809.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14295 + ... + 19645.

It is an arithmetic number, because the mean of its divisors is an integer number (10223658).

Almost surely, 2^90806470 is an apocalyptic number.

90806470 is a deficient number, since it is larger than the sum of its proper divisors (72772058).

90806470 is a wasteful number, since it uses less digits than its factorization.

90806470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7055.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 90806470 is about 9529.2428870294. The cubic root of 90806470 is about 449.4750586569.

The spelling of 90806470 in words is "ninety million, eight hundred six thousand, four hundred seventy".