1429778479 has 2 divisors, whose sum is σ = 1429778480. Its totient is φ = 1429778478.

The previous prime is 1429778477. The next prime is 1429778507. The reversal of 1429778479 is 9748779241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1429778479 - 2¹ = 1429778477 is a prime.

Together with 1429778477, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1429778477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714889239 + 714889240.

It is an arithmetic number, because the mean of its divisors is an integer number (714889240).

Almost surely, 2^1429778479 is an apocalyptic number.

1429778479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1429778479 is an equidigital number, since it uses as much as digits as its factorization.

1429778479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7112448, while the sum is 58.

The square root of 1429778479 is about 37812.4117056820. The cubic root of 1429778479 is about 1126.5649933440.

The spelling of 1429778479 in words is "one billion, four hundred twenty-nine million, seven hundred seventy-eight thousand, four hundred seventy-nine".