428802629 has 4 divisors (see below), whose sum is σ = 431887680. Its totient is φ = 425717580.

The previous prime is 428802617. The next prime is 428802631. The reversal of 428802629 is 926208824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 428802629 - 2¹² = 428798533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428802329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1542317 + ... + 1542594.

It is an arithmetic number, because the mean of its divisors is an integer number (107971920).

Almost surely, 2^428802629 is an apocalyptic number.

It is an amenable number.

428802629 is a deficient number, since it is larger than the sum of its proper divisors (3085051).

428802629 is a wasteful number, since it uses less digits than its factorization.

428802629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085050.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 428802629 is about 20707.5500482312. The cubic root of 428802629 is about 754.0829935123.

The spelling of 428802629 in words is "four hundred twenty-eight million, eight hundred two thousand, six hundred twenty-nine".