1292791 has 4 divisors (see below), whose sum is σ = 1337400. Its totient is φ = 1248184.

The previous prime is 1292789. The next prime is 1292801. The reversal of 1292791 is 1972921.

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 1292791 - 2¹ = 1292789 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 (1292701) 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, 22261 + ... + 22318.

It is an arithmetic number, because the mean of its divisors is an integer number (334350).

2^1292791 is an apocalyptic number.

1292791 is a deficient number, since it is larger than the sum of its proper divisors (44609).

1292791 is an equidigital number, since it uses as much as digits as its factorization.

1292791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44608.

The product of its digits is 2268, while the sum is 31.

The square root of 1292791 is about 1137.0096745411. The cubic root of 1292791 is about 108.9371744680.

The spelling of 1292791 in words is "one million, two hundred ninety-two thousand, seven hundred ninety-one".