90713 has 4 divisors (see below), whose sum is σ = 103680. Its totient is φ = 77748.

The previous prime is 90709. The next prime is 90731. The reversal of 90713 is 31709.

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: 31709 = 37 ⋅857.

It is a cyclic number.

It is not a de Polignac number, because 90713 - 2² = 90709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90703) 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, 6473 + ... + 6486.

It is an arithmetic number, because the mean of its divisors is an integer number (25920).

2⁹⁰⁷¹³ is an apocalyptic number.

It is an amenable number.

90713 is a deficient number, since it is larger than the sum of its proper divisors (12967).

90713 is a wasteful number, since it uses less digits than its factorization.

90713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12966.

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 90713 is about 301.1859890500. The cubic root of 90713 is about 44.9320786034.

The spelling of 90713 in words is "ninety thousand, seven hundred thirteen".