863374428 has 288 divisors, whose sum is σ = 2761973760. Its totient is φ = 222082560.

The previous prime is 863374417. The next prime is 863374487. The reversal of 863374428 is 824473368.

863374428 is a `hidden beast` number, since 8 + 633 + 7 + 4 + 4 + 2 + 8 = 666.

863374428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8382225 + ... + 8382327.

Almost surely, 2^863374428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863374428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1380986880).

863374428 is an abundant number, since it is smaller than the sum of its proper divisors (1898599332).

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

863374428 is a wasteful number, since it uses less digits than its factorization.

863374428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 212 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 863374428 is about 29383.2337907181. The cubic root of 863374428 is about 952.2107067797.

The spelling of 863374428 in words is "eight hundred sixty-three million, three hundred seventy-four thousand, four hundred twenty-eight".