1629713 has 4 divisors (see below), whose sum is σ = 1685940. Its totient is φ = 1573488.

The previous prime is 1629689. The next prime is 1629721. The reversal of 1629713 is 3179261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3179261 = 563 ⋅5647.

It can be written as a sum of positive squares in 2 ways, for example, as 300304 + 1329409 = 548^2 + 1153^2 .

It is a cyclic number.

It is not a de Polignac number, because 1629713 - 2⁸ = 1629457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 56197 = 1629713 / (1 + 6 + 2 + 9 + 7 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1629013) 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, 28070 + ... + 28127.

It is an arithmetic number, because the mean of its divisors is an integer number (421485).

2^1629713 is an apocalyptic number.

It is an amenable number.

1629713 is a deficient number, since it is larger than the sum of its proper divisors (56227).

1629713 is an equidigital number, since it uses as much as digits as its factorization.

1629713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56226.

The product of its digits is 2268, while the sum is 29.

The square root of 1629713 is about 1276.6021306578. The cubic root of 1629713 is about 117.6802845812.

The spelling of 1629713 in words is "one million, six hundred twenty-nine thousand, seven hundred thirteen".