1264869 has 16 divisors (see below), whose sum is σ = 1900800. Its totient is φ = 831168.

The previous prime is 1264867. The next prime is 1264873. The reversal of 1264869 is 9684621.

1264869 is a `hidden beast` number, since 1 + 2 + 648 + 6 + 9 = 666.

It is not a de Polignac number, because 1264869 - 2¹ = 1264867 is a prime.

It is a super-2 number, since 2×1264869² = 3199787174322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264867) 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 15 ways as a sum of consecutive naturals, for example, 1837 + ... + 2429.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

2^1264869 is an apocalyptic number.

It is an amenable number.

1264869 is a deficient number, since it is larger than the sum of its proper divisors (635931).

1264869 is an equidigital number, since it uses as much as digits as its factorization.

1264869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 675 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1264869 is about 1124.6639498090. The cubic root of 1264869 is about 108.1471758897.

The spelling of 1264869 in words is "one million, two hundred sixty-four thousand, eight hundred sixty-nine".