7442657 has 2 divisors, whose sum is σ = 7442658. Its totient is φ = 7442656.

The previous prime is 7442653. The next prime is 7442663. The reversal of 7442657 is 7562447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5527201 + 1915456 = 2351^2 + 1384^2 .

It is an emirp because it is prime and its reverse (7562447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7442657 - 2² = 7442653 is a prime.

It is not a weakly prime, because it can be changed into another prime (7442653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3721328 + 3721329.

It is an arithmetic number, because the mean of its divisors is an integer number (3721329).

Almost surely, 2^7442657 is an apocalyptic number.

It is an amenable number.

7442657 is a deficient number, since it is larger than the sum of its proper divisors (1).

7442657 is an equidigital number, since it uses as much as digits as its factorization.

7442657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 35.

The square root of 7442657 is about 2728.1233476513. The cubic root of 7442657 is about 195.2432379947.

The spelling of 7442657 in words is "seven million, four hundred forty-two thousand, six hundred fifty-seven".