1628429 has 8 divisors (see below), whose sum is σ = 1785888. Its totient is φ = 1472560.

The previous prime is 1628401. The next prime is 1628441. The reversal of 1628429 is 9248261.

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

It is a cyclic number.

It is not a de Polignac number, because 1628429 - 2⁸ = 1628173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1628395 and 1628404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628489) 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, 3254 + ... + 3720.

It is an arithmetic number, because the mean of its divisors is an integer number (223236).

2^1628429 is an apocalyptic number.

It is an amenable number.

1628429 is a deficient number, since it is larger than the sum of its proper divisors (157459).

1628429 is a wasteful number, since it uses less digits than its factorization.

1628429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795.

The product of its digits is 6912, while the sum is 32.

The square root of 1628429 is about 1276.0991340801. The cubic root of 1628429 is about 117.6493709202.

The spelling of 1628429 in words is "one million, six hundred twenty-eight thousand, four hundred twenty-nine".