33996531 has 16 divisors (see below), whose sum is σ = 46640000. Its totient is φ = 22014720.

The previous prime is 33996493. The next prime is 33996533. The reversal of 33996531 is 13569933.

It is not a de Polignac number, because 33996531 - 2⁹ = 33996019 is a prime.

It is a super-2 number, since 2×33996531² = 2311528240067922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33996531.

It is not an unprimeable number, because it can be changed into a prime (33996533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26595 + ... + 27843.

It is an arithmetic number, because the mean of its divisors is an integer number (2915000).

Almost surely, 2^33996531 is an apocalyptic number.

33996531 is a deficient number, since it is larger than the sum of its proper divisors (12643469).

33996531 is a wasteful number, since it uses less digits than its factorization.

33996531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506.

The product of its digits is 65610, while the sum is 39.

The square root of 33996531 is about 5830.6544229615. The cubic root of 33996531 is about 323.9501618968.

The spelling of 33996531 in words is "thirty-three million, nine hundred ninety-six thousand, five hundred thirty-one".