7573949 has 2 divisors, whose sum is σ = 7573950. Its totient is φ = 7573948.

The previous prime is 7573939. The next prime is 7573987. The reversal of 7573949 is 9493757.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7562500 + 11449 = 2750^2 + 107^2 .

It is a cyclic number.

It is not a de Polignac number, because 7573949 - 2⁴ = 7573933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7573939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3786974 + 3786975.

It is an arithmetic number, because the mean of its divisors is an integer number (3786975).

Almost surely, 2^7573949 is an apocalyptic number.

It is an amenable number.

7573949 is a deficient number, since it is larger than the sum of its proper divisors (1).

7573949 is an equidigital number, since it uses as much as digits as its factorization.

7573949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 44.

The square root of 7573949 is about 2752.0808491031. The cubic root of 7573949 is about 196.3846137166.

The spelling of 7573949 in words is "seven million, five hundred seventy-three thousand, nine hundred forty-nine".