98667840 has 112 divisors (see below), whose sum is σ = 317479680. Its totient is φ = 25958400.

The previous prime is 98667797. The next prime is 98667841. The reversal of 98667840 is 4876689.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 98667840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98667841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75190 + ... + 76490.

It is an arithmetic number, because the mean of its divisors is an integer number (2834640).

Almost surely, 2^98667840 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 98667840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158739840).

98667840 is an abundant number, since it is smaller than the sum of its proper divisors (218811840).

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

98667840 is a wasteful number, since it uses less digits than its factorization.

98667840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 98667840 is about 9933.1686787248. The cubic root of 98667840 is about 462.0885495831.

The spelling of 98667840 in words is "ninety-eight million, six hundred sixty-seven thousand, eight hundred forty".