1292879 has 8 divisors (see below), whose sum is σ = 1486848. Its totient is φ = 1101240.

The previous prime is 1292857. The next prime is 1292887. The reversal of 1292879 is 9782921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1292879 - 2¹² = 1288783 is a prime.

It is a super-2 number, since 2×1292879² = 3343072217282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854 + ... + 1820.

It is an arithmetic number, because the mean of its divisors is an integer number (185856).

2^1292879 is an apocalyptic number.

1292879 is a deficient number, since it is larger than the sum of its proper divisors (193969).

1292879 is an equidigital number, since it uses as much as digits as its factorization.

1292879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165.

The product of its digits is 18144, while the sum is 38.

The square root of 1292879 is about 1137.0483718822. The cubic root of 1292879 is about 108.9396461885.

The spelling of 1292879 in words is "one million, two hundred ninety-two thousand, eight hundred seventy-nine".