7972511 has 2 divisors, whose sum is σ = 7972512. Its totient is φ = 7972510.

The previous prime is 7972499. The next prime is 7972553. The reversal of 7972511 is 1152797.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7972511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7972411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3986255 + 3986256.

It is an arithmetic number, because the mean of its divisors is an integer number (3986256).

Almost surely, 2^7972511 is an apocalyptic number.

7972511 is a deficient number, since it is larger than the sum of its proper divisors (1).

7972511 is an equidigital number, since it uses as much as digits as its factorization.

7972511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4410, while the sum is 32.

The square root of 7972511 is about 2823.5635285929. The cubic root of 7972511 is about 199.7706621212.

The spelling of 7972511 in words is "seven million, nine hundred seventy-two thousand, five hundred eleven".