33197972 has 6 divisors (see below), whose sum is σ = 58096458. Its totient is φ = 16598984.

The previous prime is 33197963. The next prime is 33197999. The reversal of 33197972 is 27979133.

It can be written as a sum of positive squares in only one way, i.e., 30625156 + 2572816 = 5534^2 + 1604^2 .

It is a super-2 number, since 2×33197972² = 2204210689825568, 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 as a sum of consecutive naturals, namely, 4149743 + ... + 4149750.

It is an arithmetic number, because the mean of its divisors is an integer number (9682743).

Almost surely, 2^33197972 is an apocalyptic number.

It is an amenable number.

33197972 is a deficient number, since it is larger than the sum of its proper divisors (24898486).

33197972 is a wasteful number, since it uses less digits than its factorization.

33197972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8299497 (or 8299495 counting only the distinct ones).

The product of its digits is 71442, while the sum is 41.

The square root of 33197972 is about 5761.7681313986. The cubic root of 33197972 is about 321.3935707544.

The spelling of 33197972 in words is "thirty-three million, one hundred ninety-seven thousand, nine hundred seventy-two".