7390561 has 2 divisors, whose sum is σ = 7390562. Its totient is φ = 7390560.

The previous prime is 7390553. The next prime is 7390573. The reversal of 7390561 is 1650937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6451600 + 938961 = 2540^2 + 969^2 .

It is an emirp because it is prime and its reverse (1650937) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7390561 - 2³ = 7390553 is a prime.

It is not a weakly prime, because it can be changed into another prime (7390531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3695280 + 3695281.

It is an arithmetic number, because the mean of its divisors is an integer number (3695281).

Almost surely, 2^7390561 is an apocalyptic number.

It is an amenable number.

7390561 is a deficient number, since it is larger than the sum of its proper divisors (1).

7390561 is an equidigital number, since it uses as much as digits as its factorization.

7390561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 7390561 is about 2718.5586254484. The cubic root of 7390561 is about 194.7866261284.

The spelling of 7390561 in words is "seven million, three hundred ninety thousand, five hundred sixty-one".