855203877 has 24 divisors (see below), whose sum is σ = 1349625888. Its totient is φ = 517524000.

The previous prime is 855203873. The next prime is 855203911. The reversal of 855203877 is 778302558.

It is not a de Polignac number, because 855203877 - 2² = 855203873 is a prime.

It is a super-2 number, since 2×855203877² = 1462747342471662258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855203873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63238 + ... + 75560.

It is an arithmetic number, because the mean of its divisors is an integer number (56234412).

Almost surely, 2^855203877 is an apocalyptic number.

It is an amenable number.

855203877 is a deficient number, since it is larger than the sum of its proper divisors (494422011).

855203877 is a wasteful number, since it uses less digits than its factorization.

855203877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13041 (or 13038 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 855203877 is about 29243.8690497684. The cubic root of 855203877 is about 949.1974300200.

The spelling of 855203877 in words is "eight hundred fifty-five million, two hundred three thousand, eight hundred seventy-seven".