98451720 has 64 divisors (see below), whose sum is σ = 328176000. Its totient is φ = 26253504.

The previous prime is 98451719. The next prime is 98451733. The reversal of 98451720 is 2715489.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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, 44500 + ... + 46659.

It is an arithmetic number, because the mean of its divisors is an integer number (5127750).

Almost surely, 2^98451720 is an apocalyptic number.

98451720 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

98451720 is an abundant number, since it is smaller than the sum of its proper divisors (229724280).

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

98451720 is a wasteful number, since it uses less digits than its factorization.

98451720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91179 (or 91169 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 98451720 is about 9922.2840112547. The cubic root of 98451720 is about 461.7509198771.

The spelling of 98451720 in words is "ninety-eight million, four hundred fifty-one thousand, seven hundred twenty".