7257667 has 2 divisors, whose sum is σ = 7257668. Its totient is φ = 7257666.

The previous prime is 7257659. The next prime is 7257707. The reversal of 7257667 is 7667527.

It is an a-pointer prime, because the next prime (7257707) can be obtained adding 7257667 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7257667 - 2³ = 7257659 is a prime.

It is not a weakly prime, because it can be changed into another prime (7207667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3628833 + 3628834.

It is an arithmetic number, because the mean of its divisors is an integer number (3628834).

Almost surely, 2^7257667 is an apocalyptic number.

7257667 is a deficient number, since it is larger than the sum of its proper divisors (1).

7257667 is an equidigital number, since it uses as much as digits as its factorization.

7257667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123480, while the sum is 40.

The square root of 7257667 is about 2694.0057535202. The cubic root of 7257667 is about 193.6120333088.

The spelling of 7257667 in words is "seven million, two hundred fifty-seven thousand, six hundred sixty-seven".