1428979967 has 4 divisors (see below), whose sum is σ = 1429271496. Its totient is φ = 1428688440.

The previous prime is 1428979957. The next prime is 1428979969. The reversal of 1428979967 is 7699798241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1428979967 - 2⁸ = 1428979711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428979969) 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, 138284 + ... + 148257.

It is an arithmetic number, because the mean of its divisors is an integer number (357317874).

Almost surely, 2^1428979967 is an apocalyptic number.

1428979967 is a deficient number, since it is larger than the sum of its proper divisors (291529).

1428979967 is an equidigital number, since it uses as much as digits as its factorization.

1428979967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291528.

The product of its digits is 13716864, while the sum is 62.

The square root of 1428979967 is about 37801.8513700057. The cubic root of 1428979967 is about 1126.3552305035.

The spelling of 1428979967 in words is "one billion, four hundred twenty-eight million, nine hundred seventy-nine thousand, nine hundred sixty-seven".