1264087 has 12 divisors (see below), whose sum is σ = 1438528. Its totient is φ = 1108800.

The previous prime is 1264063. The next prime is 1264129. The reversal of 1264087 is 7804621.

It is not a de Polignac number, because 1264087 - 2¹⁵ = 1231319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264027) 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, 3583 + ... + 3919.

2^1264087 is an apocalyptic number.

1264087 is a deficient number, since it is larger than the sum of its proper divisors (174441).

1264087 is a wasteful number, since it uses less digits than its factorization.

1264087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1264087 is about 1124.3162366523. The cubic root of 1264087 is about 108.1248841145.

The spelling of 1264087 in words is "one million, two hundred sixty-four thousand, eighty-seven".