1272764 has 6 divisors (see below), whose sum is σ = 2227344. Its totient is φ = 636380.

The previous prime is 1272749. The next prime is 1272811. The reversal of 1272764 is 4672721.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159092 + ... + 159099.

It is an arithmetic number, because the mean of its divisors is an integer number (371224).

2^1272764 is an apocalyptic number.

It is an amenable number.

1272764 is a deficient number, since it is larger than the sum of its proper divisors (954580).

1272764 is a wasteful number, since it uses less digits than its factorization.

1272764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318195 (or 318193 counting only the distinct ones).

The product of its digits is 4704, while the sum is 29.

The square root of 1272764 is about 1128.1684271420. The cubic root of 1272764 is about 108.3717186789.

The spelling of 1272764 in words is "one million, two hundred seventy-two thousand, seven hundred sixty-four".