90579069 has 24 divisors (see below), whose sum is σ = 149827392. Its totient is φ = 51655680.

The previous prime is 90579053. The next prime is 90579091. The reversal of 90579069 is 96097509.

It is not a de Polignac number, because 90579069 - 2⁴ = 90579053 is a prime.

It is a super-2 number, since 2×90579069² = 16409135481813522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90579019) 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 23 ways as a sum of consecutive naturals, for example, 39262 + ... + 41504.

It is an arithmetic number, because the mean of its divisors is an integer number (6242808).

Almost surely, 2^90579069 is an apocalyptic number.

It is an amenable number.

90579069 is a deficient number, since it is larger than the sum of its proper divisors (59248323).

90579069 is a wasteful number, since it uses less digits than its factorization.

90579069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897 (or 2894 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 90579069 is about 9517.3036622775. The cubic root of 90579069 is about 449.0995475397.

The spelling of 90579069 in words is "ninety million, five hundred seventy-nine thousand, sixty-nine".