90758769 has 4 divisors (see below), whose sum is σ = 121011696. Its totient is φ = 60505844.

The previous prime is 90758749. The next prime is 90758809. The reversal of 90758769 is 96785709.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90758769 - 2⁷ = 90758641 is a prime.

It is a super-2 number, since 2×90758769² = 16474308300790722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90758749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15126459 + ... + 15126464.

It is an arithmetic number, because the mean of its divisors is an integer number (30252924).

Almost surely, 2^90758769 is an apocalyptic number.

It is an amenable number.

90758769 is a deficient number, since it is larger than the sum of its proper divisors (30252927).

90758769 is a wasteful number, since it uses less digits than its factorization.

90758769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30252926.

The product of its (nonzero) digits is 952560, while the sum is 51.

The square root of 90758769 is about 9526.7396836483. The cubic root of 90758769 is about 449.3963411928.

The spelling of 90758769 in words is "ninety million, seven hundred fifty-eight thousand, seven hundred sixty-nine".