90814613 has 8 divisors (see below), whose sum is σ = 93498240. Its totient is φ = 88143120.

The previous prime is 90814553. The next prime is 90814651. The reversal of 90814613 is 31641809.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90814613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90814613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90814673) 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, 13448 + ... + 19038.

It is an arithmetic number, because the mean of its divisors is an integer number (11687280).

Almost surely, 2^90814613 is an apocalyptic number.

It is an amenable number.

90814613 is a deficient number, since it is larger than the sum of its proper divisors (2683627).

90814613 is a wasteful number, since it uses less digits than its factorization.

90814613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6067.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 90814613 is about 9529.6701411959. The cubic root of 90814613 is about 449.4884936981.

The spelling of 90814613 in words is "ninety million, eight hundred fourteen thousand, six hundred thirteen".