1207855 has 8 divisors (see below), whose sum is σ = 1581264. Its totient is φ = 878400.

The previous prime is 1207841. The next prime is 1207883. The reversal of 1207855 is 5587021.

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

It is not a de Polignac number, because 1207855 - 2⁷ = 1207727 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

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, 10926 + ... + 11035.

It is an arithmetic number, because the mean of its divisors is an integer number (197658).

2^1207855 is an apocalyptic number.

1207855 is a deficient number, since it is larger than the sum of its proper divisors (373409).

1207855 is a wasteful number, since it uses less digits than its factorization.

1207855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21977.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 1207855 is about 1099.0245675143. The cubic root of 1207855 is about 106.4972190271.

The spelling of 1207855 in words is "one million, two hundred seven thousand, eight hundred fifty-five".