1628029 has 8 divisors (see below), whose sum is σ = 1782872. Its totient is φ = 1477440.

The previous prime is 1627981. The next prime is 1628051. The reversal of 1628029 is 9208261.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15129 + 1612900 = 123^2 + 1270^2 .

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 1628029 - 2¹³ = 1619837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1627988 and 1628006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628059) 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, 234 + ... + 1819.

It is an arithmetic number, because the mean of its divisors is an integer number (222859).

2^1628029 is an apocalyptic number.

It is an amenable number.

1628029 is a deficient number, since it is larger than the sum of its proper divisors (154843).

1628029 is a wasteful number, since it uses less digits than its factorization.

1628029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1628029 is about 1275.9423968189. The cubic root of 1628029 is about 117.6397371767.

The spelling of 1628029 in words is "one million, six hundred twenty-eight thousand, twenty-nine".