1272770 has 8 divisors (see below), whose sum is σ = 2291004. Its totient is φ = 509104.

The previous prime is 1272749. The next prime is 1272811. The reversal of 1272770 is 772721.

It can be written as a sum of positive squares in 2 ways, for example, as 1256641 + 16129 = 1121^2 + 127^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 63629 + ... + 63648.

2^1272770 is an apocalyptic number.

1272770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1272770 is a deficient number, since it is larger than the sum of its proper divisors (1018234).

1272770 is a wasteful number, since it uses less digits than its factorization.

1272770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127284.

The product of its (nonzero) digits is 1372, while the sum is 26.

The square root of 1272770 is about 1128.1710863163. The cubic root of 1272770 is about 108.3718889721.

The spelling of 1272770 in words is "one million, two hundred seventy-two thousand, seven hundred seventy".