1429779609 has 6 divisors (see below), whose sum is σ = 2065237226. Its totient is φ = 953186400.

The previous prime is 1429779581. The next prime is 1429779623. The reversal of 1429779609 is 9069779241.

1429779609 is a `hidden beast` number, since 1 + 4 + 29 + 7 + 7 + 9 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1428613209 + 1166400 = 37797^2 + 1080^2 .

It is not a de Polignac number, because 1429779609 - 2⁹ = 1429779097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1429279609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79432192 + ... + 79432209.

Almost surely, 2^1429779609 is an apocalyptic number.

It is an amenable number.

1429779609 is a deficient number, since it is larger than the sum of its proper divisors (635457617).

1429779609 is a wasteful number, since it uses less digits than its factorization.

1429779609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158864407 (or 158864404 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The square root of 1429779609 is about 37812.4266478627. The cubic root of 1429779609 is about 1126.5652901308.

The spelling of 1429779609 in words is "one billion, four hundred twenty-nine million, seven hundred seventy-nine thousand, six hundred nine".