90833479 has 4 divisors (see below), whose sum is σ = 99091080. Its totient is φ = 82575880.

The previous prime is 90833473. The next prime is 90833513. The reversal of 90833479 is 97433809.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90833479 - 2²³ = 82444871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90833473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4128784 + ... + 4128805.

It is an arithmetic number, because the mean of its divisors is an integer number (24772770).

Almost surely, 2^90833479 is an apocalyptic number.

90833479 is a deficient number, since it is larger than the sum of its proper divisors (8257601).

90833479 is a wasteful number, since it uses less digits than its factorization.

90833479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8257600.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 90833479 is about 9530.6599456701. The cubic root of 90833479 is about 449.5196174071.

It can be divided in two parts, 90 and 833479, that added together give a square (833569 = 913²).

The spelling of 90833479 in words is "ninety million, eight hundred thirty-three thousand, four hundred seventy-nine".