7644129 has 8 divisors (see below), whose sum is σ = 10207680. Its totient is φ = 5088336.

The previous prime is 7644107. The next prime is 7644157. The reversal of 7644129 is 9214467.

It is a happy number.

7644129 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7644129 - 2⁷ = 7644001 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7644129.

It is not an unprimeable number, because it can be changed into a prime (7644199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999 + ... + 4035.

It is an arithmetic number, because the mean of its divisors is an integer number (1275960).

Almost surely, 2^7644129 is an apocalyptic number.

It is an amenable number.

7644129 is a deficient number, since it is larger than the sum of its proper divisors (2563551).

7644129 is a wasteful number, since it uses less digits than its factorization.

7644129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879.

The product of its digits is 12096, while the sum is 33.

The square root of 7644129 is about 2764.8018012147. The cubic root of 7644129 is about 196.9893146136.

The spelling of 7644129 in words is "seven million, six hundred forty-four thousand, one hundred twenty-nine".