7674721 has 2 divisors, whose sum is σ = 7674722. Its totient is φ = 7674720.

The previous prime is 7674713. The next prime is 7674731. The reversal of 7674721 is 1274767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7617600 + 57121 = 2760^2 + 239^2 .

It is a cyclic number.

It is not a de Polignac number, because 7674721 - 2³ = 7674713 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (7674731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3837360 + 3837361.

It is an arithmetic number, because the mean of its divisors is an integer number (3837361).

Almost surely, 2^7674721 is an apocalyptic number.

It is an amenable number.

7674721 is a deficient number, since it is larger than the sum of its proper divisors (1).

7674721 is an equidigital number, since it uses as much as digits as its factorization.

7674721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16464, while the sum is 34.

The square root of 7674721 is about 2770.3286808608. The cubic root of 7674721 is about 197.2517502601.

The spelling of 7674721 in words is "seven million, six hundred seventy-four thousand, seven hundred twenty-one".