855976507 has 4 divisors (see below), whose sum is σ = 856064896. Its totient is φ = 855888120.

The previous prime is 855976501. The next prime is 855976529. The reversal of 855976507 is 705679558.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 855976507 - 2¹¹ = 855974459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (855976501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27588 + ... + 49729.

It is an arithmetic number, because the mean of its divisors is an integer number (214016224).

Almost surely, 2^855976507 is an apocalyptic number.

855976507 is a deficient number, since it is larger than the sum of its proper divisors (88389).

855976507 is a wasteful number, since it uses less digits than its factorization.

855976507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88388.

The product of its (nonzero) digits is 2646000, while the sum is 52.

The square root of 855976507 is about 29257.0761867962. The cubic root of 855976507 is about 949.4831933274.

The spelling of 855976507 in words is "eight hundred fifty-five million, nine hundred seventy-six thousand, five hundred seven".