7628591 has 2 divisors, whose sum is σ = 7628592. Its totient is φ = 7628590.

The previous prime is 7628581. The next prime is 7628603. The reversal of 7628591 is 1958267.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7628591 - 2⁶ = 7628527 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7628521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3814295 + 3814296.

It is an arithmetic number, because the mean of its divisors is an integer number (3814296).

Almost surely, 2^7628591 is an apocalyptic number.

7628591 is a deficient number, since it is larger than the sum of its proper divisors (1).

7628591 is an equidigital number, since it uses as much as digits as its factorization.

7628591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 7628591 is about 2761.9904054866. The cubic root of 7628591 is about 196.8557525821.

The spelling of 7628591 in words is "seven million, six hundred twenty-eight thousand, five hundred ninety-one".