7920629 has 2 divisors, whose sum is σ = 7920630. Its totient is φ = 7920628.

The previous prime is 7920613. The next prime is 7920641. The reversal of 7920629 is 9260297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6300100 + 1620529 = 2510^2 + 1273^2 .

It is a cyclic number.

It is not a de Polignac number, because 7920629 - 2⁴ = 7920613 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7920229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3960314 + 3960315.

It is an arithmetic number, because the mean of its divisors is an integer number (3960315).

Almost surely, 2^7920629 is an apocalyptic number.

It is an amenable number.

7920629 is a deficient number, since it is larger than the sum of its proper divisors (1).

7920629 is an equidigital number, since it uses as much as digits as its factorization.

7920629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 7920629 is about 2814.3612063841. The cubic root of 7920629 is about 199.3363754478.

The spelling of 7920629 in words is "seven million, nine hundred twenty thousand, six hundred twenty-nine".