1264705 has 8 divisors (see below), whose sum is σ = 1634472. Its totient is φ = 933888.

The previous prime is 1264699. The next prime is 1264733. The reversal of 1264705 is 5074621.

It can be written as a sum of positive squares in 4 ways, for example, as 106929 + 1157776 = 327^2 + 1076^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1264705 - 2⁷ = 1264577 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1264705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9664 + ... + 9793.

It is an arithmetic number, because the mean of its divisors is an integer number (204309).

2^1264705 is an apocalyptic number.

It is an amenable number.

1264705 is a deficient number, since it is larger than the sum of its proper divisors (369767).

1264705 is a wasteful number, since it uses less digits than its factorization.

1264705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19475.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1264705 is about 1124.5910367774. The cubic root of 1264705 is about 108.1425016498.

The spelling of 1264705 in words is "one million, two hundred sixty-four thousand, seven hundred five".