2969981 has 8 divisors (see below), whose sum is σ = 3407040. Its totient is φ = 2536128.

The previous prime is 2969971. The next prime is 2969983. The reversal of 2969981 is 1899692.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2969981 is a prime.

It is a super-2 number, since 2×2969981² = 17641574280722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2969983) 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 7 ways as a sum of consecutive naturals, for example, 1730 + ... + 2988.

It is an arithmetic number, because the mean of its divisors is an integer number (425880).

2^2969981 is an apocalyptic number.

It is an amenable number.

2969981 is a deficient number, since it is larger than the sum of its proper divisors (437059).

2969981 is a wasteful number, since it uses less digits than its factorization.

2969981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603.

The product of its digits is 69984, while the sum is 44.

The square root of 2969981 is about 1723.3632814935. The cubic root of 2969981 is about 143.7422891894.

The spelling of 2969981 in words is "two million, nine hundred sixty-nine thousand, nine hundred eighty-one".