1264779 has 12 divisors (see below), whose sum is σ = 1848600. Its totient is φ = 833184.

The previous prime is 1264763. The next prime is 1264787. The reversal of 1264779 is 9774621.

It is a happy number.

1264779 is a `hidden beast` number, since 1 + 2 + 647 + 7 + 9 = 666.

It is not a de Polignac number, because 1264779 - 2⁴ = 1264763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1264979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12 + ... + 1590.

It is an arithmetic number, because the mean of its divisors is an integer number (154050).

2^1264779 is an apocalyptic number.

1264779 is a deficient number, since it is larger than the sum of its proper divisors (583821).

1264779 is a wasteful number, since it uses less digits than its factorization.

1264779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674 (or 1671 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 1264779 is about 1124.6239371452. The cubic root of 1264779 is about 108.1446108080.

The spelling of 1264779 in words is "one million, two hundred sixty-four thousand, seven hundred seventy-nine".