4287656898 has 72 divisors (see below), whose sum is σ = 10954846188. Its totient is φ = 1208245248.

The previous prime is 4287656897. The next prime is 4287656917. The reversal of 4287656898 is 8986567824.

4287656898 is a `hidden beast` number, since 428 + 7 + 65 + 68 + 98 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4284618849 + 3038049 = 65457^2 + 1743^2 .

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (4287656897) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 31090 + ... + 97682.

Almost surely, 2^4287656898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4287656898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5477423094).

4287656898 is an abundant number, since it is smaller than the sum of its proper divisors (6667189290).

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

4287656898 is a wasteful number, since it uses less digits than its factorization.

4287656898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66688 (or 66678 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The square root of 4287656898 is about 65480.2023362787. The cubic root of 4287656898 is about 1624.5759080127.

The spelling of 4287656898 in words is "four billion, two hundred eighty-seven million, six hundred fifty-six thousand, eight hundred ninety-eight".