98657678 has 12 divisors (see below), whose sum is σ = 172147752. Its totient is φ = 42281820.

The previous prime is 98657659. The next prime is 98657687. The reversal of 98657678 is 87675689.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503258 + ... + 503453.

It is an arithmetic number, because the mean of its divisors is an integer number (14345646).

Almost surely, 2^98657678 is an apocalyptic number.

98657678 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

98657678 is a deficient number, since it is larger than the sum of its proper divisors (73490074).

98657678 is a wasteful number, since it uses less digits than its factorization.

98657678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006727 (or 1006720 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 56.

The square root of 98657678 is about 9932.6571470075. The cubic root of 98657678 is about 462.0726852276.

The spelling of 98657678 in words is "ninety-eight million, six hundred fifty-seven thousand, six hundred seventy-eight".