1271792 has 20 divisors (see below), whose sum is σ = 2491656. Its totient is φ = 628800.

The previous prime is 1271791. The next prime is 1271797. The reversal of 1271792 is 2971721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271791) 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, 1223 + ... + 2009.

2^1271792 is an apocalyptic number.

It is an amenable number.

1271792 is a deficient number, since it is larger than the sum of its proper divisors (1219864).

1271792 is a wasteful number, since it uses less digits than its factorization.

1271792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 890 counting only the distinct ones).

The product of its digits is 1764, while the sum is 29.

The square root of 1271792 is about 1127.7375581225. The cubic root of 1271792 is about 108.3441241059.

The spelling of 1271792 in words is "one million, two hundred seventy-one thousand, seven hundred ninety-two".