3202991 has 12 divisors (see below), whose sum is σ = 3568656. Its totient is φ = 2872320.

The previous prime is 3202967. The next prime is 3202993. The reversal of 3202991 is 1992023.

It is a de Polignac number, because none of the positive numbers 2^k-3202991 is a prime.

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 3202991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3202993) 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, 12335 + ... + 12591.

It is an arithmetic number, because the mean of its divisors is an integer number (297388).

Almost surely, 2^3202991 is an apocalyptic number.

3202991 is a deficient number, since it is larger than the sum of its proper divisors (365665).

3202991 is a wasteful number, since it uses less digits than its factorization.

3202991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 3202991 is about 1789.6901966542. The cubic root of 3202991 is about 147.4071578911.

The spelling of 3202991 in words is "three million, two hundred two thousand, nine hundred ninety-one".