90368629 has 4 divisors (see below), whose sum is σ = 97320076. Its totient is φ = 83417184.

The previous prime is 90368623. The next prime is 90368659. The reversal of 90368629 is 92686309.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49702500 + 40666129 = 7050^2 + 6377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90368629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90368623) 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, 3475704 + ... + 3475729.

It is an arithmetic number, because the mean of its divisors is an integer number (24330019).

Almost surely, 2^90368629 is an apocalyptic number.

It is an amenable number.

90368629 is a deficient number, since it is larger than the sum of its proper divisors (6951447).

90368629 is a wasteful number, since it uses less digits than its factorization.

90368629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6951446.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 90368629 is about 9506.2415811929. The cubic root of 90368629 is about 448.7514840773.

The spelling of 90368629 in words is "ninety million, three hundred sixty-eight thousand, six hundred twenty-nine".