90347 has 4 divisors (see below), whose sum is σ = 91056. Its totient is φ = 89640.

The previous prime is 90313. The next prime is 90353. The reversal of 90347 is 74309.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 74309 = 19 ⋅3911.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90347 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 90347.

It is not an unprimeable number, because it can be changed into a prime (90397) 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, 104 + ... + 437.

It is an arithmetic number, because the mean of its divisors is an integer number (22764).

2⁹⁰³⁴⁷ is an apocalyptic number.

90347 is a deficient number, since it is larger than the sum of its proper divisors (709).

90347 is a wasteful number, since it uses less digits than its factorization.

90347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 90347 is about 300.5777769563. The cubic root of 90347 is about 44.8715679542.

The spelling of 90347 in words is "ninety thousand, three hundred forty-seven".