33213696 has 72 divisors (see below), whose sum is σ = 90017760. Its totient is φ = 10868736.

The previous prime is 33213647. The next prime is 33213703. The reversal of 33213696 is 69631233.

It is a super-2 number, since 2×33213696² = 2206299203960832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44946 + ... + 45678.

Almost surely, 2^33213696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33213696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45008880).

33213696 is an abundant number, since it is smaller than the sum of its proper divisors (56804064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33213696 is an equidigital number, since it uses as much as digits as its factorization.

33213696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 797 counting only the distinct ones).

The product of its digits is 17496, while the sum is 33.

The square root of 33213696 is about 5763.1324815590. The cubic root of 33213696 is about 321.4443047255. Note that the first 3 decimals are identical.

It can be divided in two parts, 332 and 13696, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 33213696 in words is "thirty-three million, two hundred thirteen thousand, six hundred ninety-six".