3202981 has 4 divisors (see below), whose sum is σ = 3206572. Its totient is φ = 3199392.

The previous prime is 3202967. The next prime is 3202993. The reversal of 3202981 is 1892023.

3202981 = 1265² + 1266².

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1600225 + 1602756 = 1265^2 + 1266^2 .

It is a cyclic number.

It is not a de Polignac number, because 3202981 - 2¹⁵ = 3170213 is a prime.

It is a super-2 number, since 2×3202981² = 20518174572722, 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 (3202921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691 + ... + 2623.

It is an arithmetic number, because the mean of its divisors is an integer number (801643).

Almost surely, 2^3202981 is an apocalyptic number.

3202981 is the 1266-th centered square number.

It is an amenable number.

3202981 is a deficient number, since it is larger than the sum of its proper divisors (3591).

3202981 is a wasteful number, since it uses less digits than its factorization.

3202981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3590.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 3202981 is about 1789.6874028724. The cubic root of 3202981 is about 147.4070044852.

The spelling of 3202981 in words is "three million, two hundred two thousand, nine hundred eighty-one".