33623973 has 12 divisors (see below), whose sum is σ = 48719008. Its totient is φ = 22346280.

The previous prime is 33623969. The next prime is 33623981. The reversal of 33623973 is 37932633.

It is not a de Polignac number, because 33623973 - 2² = 33623969 is a prime.

It is a super-2 number, since 2×33623973² = 2261143120609458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33623173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2665 + ... + 8622.

Almost surely, 2^33623973 is an apocalyptic number.

It is an amenable number.

33623973 is a deficient number, since it is larger than the sum of its proper divisors (15095035).

33623973 is a wasteful number, since it uses less digits than its factorization.

33623973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11624 (or 11621 counting only the distinct ones).

The product of its digits is 61236, while the sum is 36.

The square root of 33623973 is about 5798.6181974674. The cubic root of 33623973 is about 322.7624544623.

It can be divided in two parts, 33623 and 973, that added together give a square (34596 = 186²).

The spelling of 33623973 in words is "thirty-three million, six hundred twenty-three thousand, nine hundred seventy-three".