1207864 has 16 divisors (see below), whose sum is σ = 2588400. Its totient is φ = 517632.

The previous prime is 1207841. The next prime is 1207883. The reversal of 1207864 is 4687021.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10729 + ... + 10840.

It is an arithmetic number, because the mean of its divisors is an integer number (161775).

2^1207864 is an apocalyptic number.

1207864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1207864 is an abundant number, since it is smaller than the sum of its proper divisors (1380536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1207864 is a wasteful number, since it uses less digits than its factorization.

1207864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21582 (or 21578 counting only the distinct ones).

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

The square root of 1207864 is about 1099.0286620466. The cubic root of 1207864 is about 106.4974835380.

The spelling of 1207864 in words is "one million, two hundred seven thousand, eight hundred sixty-four".