7628129 has 2 divisors, whose sum is σ = 7628130. Its totient is φ = 7628128.

The previous prime is 7628119. The next prime is 7628143. The reversal of 7628129 is 9218267.

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., 7011904 + 616225 = 2648^2 + 785^2 .

It is a cyclic number.

It is not a de Polignac number, because 7628129 - 2⁴ = 7628113 is a prime.

It is not a weakly prime, because it can be changed into another prime (7628119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3814064 + 3814065.

It is an arithmetic number, because the mean of its divisors is an integer number (3814065).

Almost surely, 2^7628129 is an apocalyptic number.

It is an amenable number.

7628129 is a deficient number, since it is larger than the sum of its proper divisors (1).

7628129 is an equidigital number, since it uses as much as digits as its factorization.

7628129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 7628129 is about 2761.9067688827. The cubic root of 7628129 is about 196.8517785326.

The spelling of 7628129 in words is "seven million, six hundred twenty-eight thousand, one hundred twenty-nine".