90859470 has 48 divisors (see below), whose sum is σ = 236140272. Its totient is φ = 22364160.

The previous prime is 90859459. The next prime is 90859487. The reversal of 90859470 is 7495809.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3891 + ... + 14030.

It is an arithmetic number, because the mean of its divisors is an integer number (4919589).

Almost surely, 2^90859470 is an apocalyptic number.

90859470 is an abundant number, since it is smaller than the sum of its proper divisors (145280802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90859470 is a wasteful number, since it uses less digits than its factorization.

90859470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17957 (or 17944 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 90859470 is about 9532.0233948517. The cubic root of 90859470 is about 449.5624883482.

It can be divided in two parts, 908 and 59470, that added together give a triangular number (60378 = T₃₄₇).

The spelling of 90859470 in words is "ninety million, eight hundred fifty-nine thousand, four hundred seventy".