90772369 has 8 divisors (see below), whose sum is σ = 93824640. Its totient is φ = 87766896.

The previous prime is 90772351. The next prime is 90772391. The reversal of 90772369 is 96327709.

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

It is a cyclic number.

It is not a de Polignac number, because 90772369 - 2²³ = 82383761 is a prime.

It is a super-2 number, since 2×90772369² = 16479245947744322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90772399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7734 + ... + 15535.

It is an arithmetic number, because the mean of its divisors is an integer number (11728080).

Almost surely, 2^90772369 is an apocalyptic number.

It is an amenable number.

90772369 is a deficient number, since it is larger than the sum of its proper divisors (3052271).

90772369 is a wasteful number, since it uses less digits than its factorization.

90772369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23399.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 90772369 is about 9527.4534373042. The cubic root of 90772369 is about 449.4187870863.

The spelling of 90772369 in words is "ninety million, seven hundred seventy-two thousand, three hundred sixty-nine".