90502669 has 4 divisors (see below), whose sum is σ = 90533344. Its totient is φ = 90471996.

The previous prime is 90502663. The next prime is 90502693. The reversal of 90502669 is 96620509.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96620509 = 883 ⋅109423.

It is a cyclic number.

It is not a de Polignac number, because 90502669 - 2⁷ = 90502541 is a prime.

It is a super-2 number, since 2×90502669² = 16381466192247122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90502663) 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, 10377 + ... + 16990.

It is an arithmetic number, because the mean of its divisors is an integer number (22633336).

Almost surely, 2^90502669 is an apocalyptic number.

90502669 is the 5493-rd hex number.

It is an amenable number.

90502669 is a deficient number, since it is larger than the sum of its proper divisors (30675).

90502669 is a wasteful number, since it uses less digits than its factorization.

90502669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30674.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 90502669 is about 9513.2890737116. The cubic root of 90502669 is about 448.9732458931.

The spelling of 90502669 in words is "ninety million, five hundred two thousand, six hundred sixty-nine".