90712833 has 8 divisors (see below), whose sum is σ = 128065248. Its totient is φ = 56917824.

The previous prime is 90712823. The next prime is 90712877. The reversal of 90712833 is 33821709.

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

It is not a de Polignac number, because 90712833 - 2¹⁰ = 90711809 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90712794 and 90712803.

It is not an unprimeable number, because it can be changed into a prime (90712813) 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, 889291 + ... + 889392.

It is an arithmetic number, because the mean of its divisors is an integer number (16008156).

Almost surely, 2^90712833 is an apocalyptic number.

It is an amenable number.

90712833 is a deficient number, since it is larger than the sum of its proper divisors (37352415).

90712833 is a wasteful number, since it uses less digits than its factorization.

90712833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778703.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 90712833 is about 9524.3284802657. The cubic root of 90712833 is about 449.3205103050.

The spelling of 90712833 in words is "ninety million, seven hundred twelve thousand, eight hundred thirty-three".