855951072 has 48 divisors (see below), whose sum is σ = 2344567680. Its totient is φ = 272911232.

The previous prime is 855951059. The next prime is 855951091. The reversal of 855951072 is 270159558.

It is a tau number, because it is divible by the number of its divisors (48).

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, 191622 + ... + 196037.

It is an arithmetic number, because the mean of its divisors is an integer number (48845160).

Almost surely, 2^855951072 is an apocalyptic number.

It is an amenable number.

855951072 is an abundant number, since it is smaller than the sum of its proper divisors (1488616608).

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

855951072 is a wasteful number, since it uses less digits than its factorization.

855951072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387695 (or 387687 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 42.

The square root of 855951072 is about 29256.6415024008. The cubic root of 855951072 is about 949.4737887297.

The spelling of 855951072 in words is "eight hundred fifty-five million, nine hundred fifty-one thousand, seventy-two".