90779026 has 24 divisors (see below), whose sum is σ = 148019184. Its totient is φ = 41736240.

The previous prime is 90778991. The next prime is 90779027. The reversal of 90779026 is 62097709.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 90779026.

It is not an unprimeable number, because it can be changed into a prime (90779027) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 165685 + ... + 166231.

It is an arithmetic number, because the mean of its divisors is an integer number (6167466).

Almost surely, 2^90779026 is an apocalyptic number.

90779026 is a deficient number, since it is larger than the sum of its proper divisors (57240158).

90779026 is a wasteful number, since it uses less digits than its factorization.

90779026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 90779026 is about 9527.8027897307. The cubic root of 90779026 is about 449.4297732038.

The spelling of 90779026 in words is "ninety million, seven hundred seventy-nine thousand, twenty-six".