1629579349 has 4 divisors (see below), whose sum is σ = 1645713900. Its totient is φ = 1613444800.

The previous prime is 1629579331. The next prime is 1629579361. The reversal of 1629579349 is 9439759261.

It is a happy number.

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 1583244100 + 46335249 = 39790^2 + 6807^2 .

It is a cyclic number.

It is not a de Polignac number, because 1629579349 - 2⁹ = 1629578837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1629579349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1629579379) 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, 8067124 + ... + 8067325.

It is an arithmetic number, because the mean of its divisors is an integer number (411428475).

Almost surely, 2^1629579349 is an apocalyptic number.

It is an amenable number.

1629579349 is a deficient number, since it is larger than the sum of its proper divisors (16134551).

1629579349 is a wasteful number, since it uses less digits than its factorization.

1629579349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16134550.

The product of its digits is 3674160, while the sum is 55.

The square root of 1629579349 is about 40368.0486152105. The cubic root of 1629579349 is about 1176.7706754900.

The spelling of 1629579349 in words is "one billion, six hundred twenty-nine million, five hundred seventy-nine thousand, three hundred forty-nine".