1297772 has 12 divisors (see below), whose sum is σ = 2595600. Its totient is φ = 556176.

The previous prime is 1297771. The next prime is 1297781. The reversal of 1297772 is 2777921.

1297772 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1297771) 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, 23147 + ... + 23202.

It is an arithmetic number, because the mean of its divisors is an integer number (216300).

2^1297772 is an apocalyptic number.

It is an amenable number.

1297772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1297772 is a wasteful number, since it uses less digits than its factorization.

1297772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46360 (or 46358 counting only the distinct ones).

The product of its digits is 12348, while the sum is 35.

The square root of 1297772 is about 1139.1979634813. The cubic root of 1297772 is about 109.0769033366.

The spelling of 1297772 in words is "one million, two hundred ninety-seven thousand, seven hundred seventy-two".