90363769 has 4 divisors (see below), whose sum is σ = 92465296. Its totient is φ = 88262244.

The previous prime is 90363733. The next prime is 90363773. The reversal of 90363769 is 96736309.

It is a happy number.

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 90363769 - 2⁹ = 90363257 is a prime.

It is a super-2 number, since 2×90363769² = 16331221495770722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 2101483 = 90363769 / (9 + 0 + 3 + 6 + 3 + 7 + 6 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90363719) 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, 1050699 + ... + 1050784.

It is an arithmetic number, because the mean of its divisors is an integer number (23116324).

Almost surely, 2^90363769 is an apocalyptic number.

It is an amenable number.

90363769 is a deficient number, since it is larger than the sum of its proper divisors (2101527).

90363769 is a wasteful number, since it uses less digits than its factorization.

90363769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101526.

The product of its (nonzero) digits is 183708, while the sum is 43.

The square root of 90363769 is about 9505.9859562278. The cubic root of 90363769 is about 448.7434393560.

The spelling of 90363769 in words is "ninety million, three hundred sixty-three thousand, seven hundred sixty-nine".