98723887 has 4 divisors (see below), whose sum is σ = 99315216. Its totient is φ = 98132560.

The previous prime is 98723869. The next prime is 98723899. The reversal of 98723887 is 78832789.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 98723887 - 2¹⁵ = 98691119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98723837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295414 + ... + 295747.

It is an arithmetic number, because the mean of its divisors is an integer number (24828804).

Almost surely, 2^98723887 is an apocalyptic number.

98723887 is a deficient number, since it is larger than the sum of its proper divisors (591329).

98723887 is a wasteful number, since it uses less digits than its factorization.

98723887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591328.

The product of its digits is 1354752, while the sum is 52.

The square root of 98723887 is about 9935.9894826836. The cubic root of 98723887 is about 462.1760275113.

The spelling of 98723887 in words is "ninety-eight million, seven hundred twenty-three thousand, eight hundred eighty-seven".