646282698 has 16 divisors (see below), whose sum is σ = 1294812480. Its totient is φ = 215053056.

The previous prime is 646282673. The next prime is 646282709. The reversal of 646282698 is 896282646.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 646282698.

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, 89878 + ... + 96801.

It is an arithmetic number, because the mean of its divisors is an integer number (80925780).

Almost surely, 2^646282698 is an apocalyptic number.

646282698 is an abundant number, since it is smaller than the sum of its proper divisors (648529782).

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

646282698 is a wasteful number, since it uses less digits than its factorization.

646282698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187261.

The product of its digits is 1990656, while the sum is 51.

The square root of 646282698 is about 25422.0907480089. The cubic root of 646282698 is about 864.5846282186.

The spelling of 646282698 in words is "six hundred forty-six million, two hundred eighty-two thousand, six hundred ninety-eight".