855925646 has 8 divisors (see below), whose sum is σ = 1287465840. Its totient is φ = 426770368.

The previous prime is 855925643. The next prime is 855925649. The reversal of 855925646 is 646529558.

It is an interprime number because it is at equal distance from previous prime (855925643) and next prime (855925649).

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

It is a super-2 number, since 2×855925646² = 1465217422961034632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 855925594 and 855925603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855925643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595331 + ... + 596766.

It is an arithmetic number, because the mean of its divisors is an integer number (160933230).

Almost surely, 2^855925646 is an apocalyptic number.

855925646 is a deficient number, since it is larger than the sum of its proper divisors (431540194).

855925646 is a wasteful number, since it uses less digits than its factorization.

855925646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192458.

The product of its digits is 2592000, while the sum is 50.

The square root of 855925646 is about 29256.2069653604. The cubic root of 855925646 is about 949.4643872734.

The spelling of 855925646 in words is "eight hundred fifty-five million, nine hundred twenty-five thousand, six hundred forty-six".