2972989 has 4 divisors (see below), whose sum is σ = 2979900. Its totient is φ = 2966080.

The previous prime is 2972971. The next prime is 2973001. The reversal of 2972989 is 9892792.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2102500 + 870489 = 1450^2 + 933^2 .

It is a cyclic number.

It is not a de Polignac number, because 2972989 - 2¹¹ = 2970941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2972939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2764 + ... + 3685.

It is an arithmetic number, because the mean of its divisors is an integer number (744975).

2^2972989 is an apocalyptic number.

2972989 is the 922-nd nonagonal number.

It is an amenable number.

2972989 is a deficient number, since it is larger than the sum of its proper divisors (6911).

2972989 is an equidigital number, since it uses as much as digits as its factorization.

2972989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6910.

The product of its digits is 163296, while the sum is 46.

The square root of 2972989 is about 1724.2357727411. The cubic root of 2972989 is about 143.7908002649.

The spelling of 2972989 in words is "two million, nine hundred seventy-two thousand, nine hundred eighty-nine".