2972407 has 4 divisors (see below), whose sum is σ = 2976480. Its totient is φ = 2968336.

The previous prime is 2972383. The next prime is 2972419. The reversal of 2972407 is 7042792.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2972407 - 2⁷ = 2972279 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

2972407 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2972447) 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, 607 + ... + 2512.

It is an arithmetic number, because the mean of its divisors is an integer number (744120).

2^2972407 is an apocalyptic number.

2972407 is a deficient number, since it is larger than the sum of its proper divisors (4073).

2972407 is an equidigital number, since it uses as much as digits as its factorization.

2972407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4072.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 2972407 is about 1724.0669940579. The cubic root of 2972407 is about 143.7814166998.

It can be divided in two parts, 297 and 2407, that added together give a square (2704 = 52²).

The spelling of 2972407 in words is "two million, nine hundred seventy-two thousand, four hundred seven".