98987478 has 16 divisors (see below), whose sum is σ = 199792560. Its totient is φ = 32692896.

The previous prime is 98987477. The next prime is 98987479. The reversal of 98987478 is 87478989.

It is an interprime number because it is at equal distance from previous prime (98987477) and next prime (98987479).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98987477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75025 + ... + 76332.

It is an arithmetic number, because the mean of its divisors is an integer number (12487035).

Almost surely, 2^98987478 is an apocalyptic number.

98987478 is an abundant number, since it is smaller than the sum of its proper divisors (100805082).

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

98987478 is a wasteful number, since it uses less digits than its factorization.

98987478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151471.

The product of its digits is 8128512, while the sum is 60.

The square root of 98987478 is about 9949.2450969910. The cubic root of 98987478 is about 462.5869958582.

The spelling of 98987478 in words is "ninety-eight million, nine hundred eighty-seven thousand, four hundred seventy-eight".