855770720 has 48 divisors (see below), whose sum is σ = 2310583968. Its totient is φ = 293406720.

The previous prime is 855770719. The next prime is 855770759. The reversal of 855770720 is 27077558.

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, 380921 + ... + 383160.

It is an arithmetic number, because the mean of its divisors is an integer number (48137166).

Almost surely, 2^855770720 is an apocalyptic number.

855770720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

855770720 is an abundant number, since it is smaller than the sum of its proper divisors (1454813248).

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

855770720 is a wasteful number, since it uses less digits than its factorization.

855770720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764103 (or 764095 counting only the distinct ones).

The product of its (nonzero) digits is 137200, while the sum is 41.

The square root of 855770720 is about 29253.5590997061. The cubic root of 855770720 is about 949.4070981868.

The spelling of 855770720 in words is "eight hundred fifty-five million, seven hundred seventy thousand, seven hundred twenty".