1299772 has 12 divisors (see below), whose sum is σ = 2317896. Its totient is φ = 637520.

The previous prime is 1299763. The next prime is 1299791. The reversal of 1299772 is 2779921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2854 + ... + 3277.

It is an arithmetic number, because the mean of its divisors is an integer number (193158).

2^1299772 is an apocalyptic number.

It is an amenable number.

1299772 is a deficient number, since it is larger than the sum of its proper divisors (1018124).

1299772 is a wasteful number, since it uses less digits than its factorization.

1299772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188 (or 6186 counting only the distinct ones).

The product of its digits is 15876, while the sum is 37.

The square root of 1299772 is about 1140.0754361006. The cubic root of 1299772 is about 109.1329074824.

The spelling of 1299772 in words is "one million, two hundred ninety-nine thousand, seven hundred seventy-two".