7445749 has 2 divisors, whose sum is σ = 7445750. Its totient is φ = 7445748.

The previous prime is 7445731. The next prime is 7445759. The reversal of 7445749 is 9475447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6275025 + 1170724 = 2505^2 + 1082^2 .

It is a cyclic number.

It is not a de Polignac number, because 7445749 - 2⁹ = 7445237 is a prime.

7445749 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7445719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3722874 + 3722875.

It is an arithmetic number, because the mean of its divisors is an integer number (3722875).

Almost surely, 2^7445749 is an apocalyptic number.

It is an amenable number.

7445749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7445749 is an equidigital number, since it uses as much as digits as its factorization.

7445749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The square root of 7445749 is about 2728.6899787261. The cubic root of 7445749 is about 195.2702717324.

The spelling of 7445749 in words is "seven million, four hundred forty-five thousand, seven hundred forty-nine".