90506683 has 4 divisors (see below), whose sum is σ = 90840928. Its totient is φ = 90172440.

The previous prime is 90506659. The next prime is 90506707. The reversal of 90506683 is 38660509.

90506683 = 107² + 108² + ... + 648².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38660509 = 29 ⋅1333121.

It is an interprime number because it is at equal distance from previous prime (90506659) and next prime (90506707).

It is a cyclic number.

It is not a de Polignac number, because 90506683 - 2¹⁷ = 90375611 is a prime.

It is the 9514-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90506083) by changing a digit.

It is a nontrivial repunit in base 9513.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166716 + ... + 167257.

It is an arithmetic number, because the mean of its divisors is an integer number (22710232).

Almost surely, 2^90506683 is an apocalyptic number.

90506683 is a deficient number, since it is larger than the sum of its proper divisors (334245).

90506683 is a wasteful number, since it uses less digits than its factorization.

90506683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334244.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 90506683 is about 9513.5000394177. The cubic root of 90506683 is about 448.9798834578.

The spelling of 90506683 in words is "ninety million, five hundred six thousand, six hundred eighty-three".