90279633 has 8 divisors (see below), whose sum is σ = 120417696. Its totient is φ = 60164000.

The previous prime is 90279613. The next prime is 90279641. The reversal of 90279633 is 33697209.

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

It is a cyclic number.

It is not a de Polignac number, because 90279633 - 2⁶ = 90279569 is a prime.

It is a super-2 number, since 2×90279633² = 16300824269229378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90279591 and 90279600.

It is not an unprimeable number, because it can be changed into a prime (90279613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9973 + ... + 16733.

It is an arithmetic number, because the mean of its divisors is an integer number (15052212).

Almost surely, 2^90279633 is an apocalyptic number.

It is an amenable number.

90279633 is a deficient number, since it is larger than the sum of its proper divisors (30138063).

90279633 is a wasteful number, since it uses less digits than its factorization.

90279633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11215.

The product of its (nonzero) digits is 61236, while the sum is 39.

The square root of 90279633 is about 9501.5595035762. The cubic root of 90279633 is about 448.6041239264.

The spelling of 90279633 in words is "ninety million, two hundred seventy-nine thousand, six hundred thirty-three".