7954721 has 2 divisors, whose sum is σ = 7954722. Its totient is φ = 7954720.

The previous prime is 7954651. The next prime is 7954763. The reversal of 7954721 is 1274597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6574096 + 1380625 = 2564^2 + 1175^2 .

It is a cyclic number.

It is not a de Polignac number, because 7954721 - 2¹⁸ = 7692577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7954781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3977360 + 3977361.

It is an arithmetic number, because the mean of its divisors is an integer number (3977361).

Almost surely, 2^7954721 is an apocalyptic number.

It is an amenable number.

7954721 is a deficient number, since it is larger than the sum of its proper divisors (1).

7954721 is an equidigital number, since it uses as much as digits as its factorization.

7954721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 35.

The square root of 7954721 is about 2820.4114948000. The cubic root of 7954721 is about 199.6219608824.

The spelling of 7954721 in words is "seven million, nine hundred fifty-four thousand, seven hundred twenty-one".