2972345 has 4 divisors (see below), whose sum is σ = 3566820. Its totient is φ = 2377872.

The previous prime is 2972323. The next prime is 2972351. The reversal of 2972345 is 5432792.

It is a happy number.

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 1048576 + 1923769 = 1024^2 + 1387^2 .

It is a cyclic number.

It is not a de Polignac number, because 2972345 - 2¹⁰ = 2971321 is a prime.

It is a Curzon number.

It is an unprimeable number.

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, 297230 + ... + 297239.

It is an arithmetic number, because the mean of its divisors is an integer number (891705).

2^2972345 is an apocalyptic number.

It is an amenable number.

2972345 is a deficient number, since it is larger than the sum of its proper divisors (594475).

2972345 is an equidigital number, since it uses as much as digits as its factorization.

2972345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594474.

The product of its digits is 15120, while the sum is 32.

The square root of 2972345 is about 1724.0490132244. The cubic root of 2972345 is about 143.7804170039.

The spelling of 2972345 in words is "two million, nine hundred seventy-two thousand, three hundred forty-five".