98787920 has 240 divisors, whose sum is σ = 305337600. Its totient is φ = 29352960.

The previous prime is 98787869. The next prime is 98787961. The reversal of 98787920 is 2978789.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1250441 + ... + 1250519.

It is an arithmetic number, because the mean of its divisors is an integer number (1272240).

Almost surely, 2^98787920 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 98787920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152668800).

98787920 is an abundant number, since it is smaller than the sum of its proper divisors (206549680).

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

98787920 is a wasteful number, since it uses less digits than its factorization.

98787920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 50.

The square root of 98787920 is about 9939.2112363105. The cubic root of 98787920 is about 462.2759294445.

The spelling of 98787920 in words is "ninety-eight million, seven hundred eighty-seven thousand, nine hundred twenty".