90070779 has 8 divisors (see below), whose sum is σ = 123968512. Its totient is φ = 58110120.

The previous prime is 90070763. The next prime is 90070793. The reversal of 90070779 is 97707009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90070779 - 2⁴ = 90070763 is a prime.

It is a super-2 number, since 2×90070779² = 16225490459333682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90070979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484159 + ... + 484344.

It is an arithmetic number, because the mean of its divisors is an integer number (15496064).

Almost surely, 2^90070779 is an apocalyptic number.

90070779 is a deficient number, since it is larger than the sum of its proper divisors (33897733).

90070779 is a wasteful number, since it uses less digits than its factorization.

90070779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968537.

The product of its (nonzero) digits is 27783, while the sum is 39.

The square root of 90070779 is about 9490.5626282112. The cubic root of 90070779 is about 448.2579214088.

The spelling of 90070779 in words is "ninety million, seventy thousand, seven hundred seventy-nine".