855610906 has 16 divisors (see below), whose sum is σ = 1320344064. Its totient is φ = 415653264.

The previous prime is 855610891. The next prime is 855610909. The reversal of 855610906 is 609016558.

It is a super-2 number, since 2×855610906² = 1464140044932281672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (855610909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28266 + ... + 50101.

It is an arithmetic number, because the mean of its divisors is an integer number (82521504).

Almost surely, 2^855610906 is an apocalyptic number.

855610906 is a deficient number, since it is larger than the sum of its proper divisors (464733158).

855610906 is a wasteful number, since it uses less digits than its factorization.

855610906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78525.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 855610906 is about 29250.8274412879. The cubic root of 855610906 is about 949.3479943526.

The spelling of 855610906 in words is "eight hundred fifty-five million, six hundred ten thousand, nine hundred six".