1264747 has 8 divisors (see below), whose sum is σ = 1440000. Its totient is φ = 1099560.

The previous prime is 1264741. The next prime is 1264763. The reversal of 1264747 is 7474621.

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

It is a de Polignac number, because none of the positive numbers 2^k-1264747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264741) 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 in 7 ways as a sum of consecutive naturals, for example, 2247 + ... + 2752.

It is an arithmetic number, because the mean of its divisors is an integer number (180000).

2^1264747 is an apocalyptic number.

1264747 is a deficient number, since it is larger than the sum of its proper divisors (175253).

1264747 is a wasteful number, since it uses less digits than its factorization.

1264747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033.

The product of its digits is 9408, while the sum is 31.

The square root of 1264747 is about 1124.6097100772. The cubic root of 1264747 is about 108.1436987497.

The spelling of 1264747 in words is "one million, two hundred sixty-four thousand, seven hundred forty-seven".