90874772 has 6 divisors (see below), whose sum is σ = 159030858. Its totient is φ = 45437384.

The previous prime is 90874769. The next prime is 90874783. The reversal of 90874772 is 27747809.

It can be written as a sum of positive squares in only one way, i.e., 83978896 + 6895876 = 9164^2 + 2626^2 .

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 as a sum of consecutive naturals, namely, 11359343 + ... + 11359350.

It is an arithmetic number, because the mean of its divisors is an integer number (26505143).

Almost surely, 2^90874772 is an apocalyptic number.

It is an amenable number.

90874772 is a deficient number, since it is larger than the sum of its proper divisors (68156086).

90874772 is a wasteful number, since it uses less digits than its factorization.

90874772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22718697 (or 22718695 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 90874772 is about 9532.8260237980. The cubic root of 90874772 is about 449.5877244594.

The spelling of 90874772 in words is "ninety million, eight hundred seventy-four thousand, seven hundred seventy-two".