1292806 has 4 divisors (see below), whose sum is σ = 1939212. Its totient is φ = 646402.

The previous prime is 1292801. The next prime is 1292813. The reversal of 1292806 is 6082921.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323200 + ... + 323203.

It is an arithmetic number, because the mean of its divisors is an integer number (484803).

2^1292806 is an apocalyptic number.

1292806 is a deficient number, since it is larger than the sum of its proper divisors (646406).

1292806 is an equidigital number, since it uses as much as digits as its factorization.

1292806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646405.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1292806 is about 1137.0162707719. The cubic root of 1292806 is about 108.9375957919.

It can be divided in two parts, 129280 and 6, that added together give a triangular number (129286 = T₅₀₈).

The spelling of 1292806 in words is "one million, two hundred ninety-two thousand, eight hundred six".