1297672 has 8 divisors (see below), whose sum is σ = 2433150. Its totient is φ = 648832.

The previous prime is 1297669. The next prime is 1297687. The reversal of 1297672 is 2767921.

It can be written as a sum of positive squares in only one way, i.e., 799236 + 498436 = 894^2 + 706^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81097 + ... + 81112.

2^1297672 is an apocalyptic number.

It is an amenable number.

1297672 is a deficient number, since it is larger than the sum of its proper divisors (1135478).

1297672 is a wasteful number, since it uses less digits than its factorization.

1297672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162215 (or 162211 counting only the distinct ones).

The product of its digits is 10584, while the sum is 34.

The square root of 1297672 is about 1139.1540721079. The cubic root of 1297672 is about 109.0741016194.

The spelling of 1297672 in words is "one million, two hundred ninety-seven thousand, six hundred seventy-two".