1273672 has 8 divisors (see below), whose sum is σ = 2388150. Its totient is φ = 636832.

The previous prime is 1273663. The next prime is 1273673. The reversal of 1273672 is 2763721.

It can be written as a sum of positive squares in only one way, i.e., 763876 + 509796 = 874^2 + 714^2 .

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1273672.

It is not an unprimeable number, because it can be changed into a prime (1273673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79597 + ... + 79612.

2^1273672 is an apocalyptic number.

It is an amenable number.

1273672 is a deficient number, since it is larger than the sum of its proper divisors (1114478).

1273672 is a wasteful number, since it uses less digits than its factorization.

1273672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159215 (or 159211 counting only the distinct ones).

The product of its digits is 3528, while the sum is 28.

The square root of 1273672 is about 1128.5707775767. The cubic root of 1273672 is about 108.3974836360.

The spelling of 1273672 in words is "one million, two hundred seventy-three thousand, six hundred seventy-two".