1429879389 has 4 divisors (see below), whose sum is σ = 1906505856. Its totient is φ = 953252924.

The previous prime is 1429879351. The next prime is 1429879391. The reversal of 1429879389 is 9839789241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1429879389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1429874389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238313229 + ... + 238313234.

It is an arithmetic number, because the mean of its divisors is an integer number (476626464).

Almost surely, 2^1429879389 is an apocalyptic number.

It is an amenable number.

1429879389 is a deficient number, since it is larger than the sum of its proper divisors (476626467).

1429879389 is an equidigital number, since it uses as much as digits as its factorization.

1429879389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476626466.

The product of its digits is 7838208, while the sum is 60.

The square root of 1429879389 is about 37813.7460323624. The cubic root of 1429879389 is about 1126.5914960507.

The spelling of 1429879389 in words is "one billion, four hundred twenty-nine million, eight hundred seventy-nine thousand, three hundred eighty-nine".