7428629 has 4 divisors (see below), whose sum is σ = 8000076. Its totient is φ = 6857184.

The previous prime is 7428599. The next prime is 7428649. The reversal of 7428629 is 9268247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4418404 + 3010225 = 2102^2 + 1735^2 .

It is a cyclic number.

It is not a de Polignac number, because 7428629 - 2¹² = 7424533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7428592 and 7428601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7428649) 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 in 3 ways as a sum of consecutive naturals, for example, 285704 + ... + 285729.

It is an arithmetic number, because the mean of its divisors is an integer number (2000019).

Almost surely, 2^7428629 is an apocalyptic number.

It is an amenable number.

7428629 is a deficient number, since it is larger than the sum of its proper divisors (571447).

7428629 is a wasteful number, since it uses less digits than its factorization.

7428629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571446.

The product of its digits is 48384, while the sum is 38.

The square root of 7428629 is about 2725.5511369263. The cubic root of 7428629 is about 195.1204953282.

The spelling of 7428629 in words is "seven million, four hundred twenty-eight thousand, six hundred twenty-nine".