98720544 has 48 divisors (see below), whose sum is σ = 279078912. Its totient is φ = 30375168.

The previous prime is 98720543. The next prime is 98720549. The reversal of 98720544 is 44502789.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (98720543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38304 + ... + 40799.

It is an arithmetic number, because the mean of its divisors is an integer number (5814144).

Almost surely, 2^98720544 is an apocalyptic number.

It is an amenable number.

98720544 is an abundant number, since it is smaller than the sum of its proper divisors (180358368).

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

98720544 is a wasteful number, since it uses less digits than its factorization.

98720544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79129 (or 79121 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 98720544 is about 9935.8212544309. The cubic root of 98720544 is about 462.1708106992.

The spelling of 98720544 in words is "ninety-eight million, seven hundred twenty thousand, five hundred forty-four".