863401960 has 32 divisors (see below), whose sum is σ = 1945193760. Its totient is φ = 344909376.

The previous prime is 863401951. The next prime is 863401997. The reversal of 863401960 is 69104368.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17767 + ... + 45193.

It is an arithmetic number, because the mean of its divisors is an integer number (60787305).

Almost surely, 2^863401960 is an apocalyptic number.

It is an amenable number.

863401960 is an abundant number, since it is smaller than the sum of its proper divisors (1081791800).

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

863401960 is a wasteful number, since it uses less digits than its factorization.

863401960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28225 (or 28221 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 863401960 is about 29383.7022854507. The cubic root of 863401960 is about 952.2208283004.

The spelling of 863401960 in words is "eight hundred sixty-three million, four hundred one thousand, nine hundred sixty".