98922981 has 4 divisors (see below), whose sum is σ = 131897312. Its totient is φ = 65948652.

The previous prime is 98922961. The next prime is 98922997. The reversal of 98922981 is 18922989.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 98922981 - 2⁷ = 98922853 is a prime.

It is a super-2 number, since 2×98922981² = 19571512339852722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98922981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98922961) 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, 16487161 + ... + 16487166.

It is an arithmetic number, because the mean of its divisors is an integer number (32974328).

Almost surely, 2^98922981 is an apocalyptic number.

It is an amenable number.

98922981 is a deficient number, since it is larger than the sum of its proper divisors (32974331).

98922981 is a wasteful number, since it uses less digits than its factorization.

98922981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32974330.

The product of its digits is 186624, while the sum is 48.

The square root of 98922981 is about 9946.0032676447. The cubic root of 98922981 is about 462.4865051821.

The spelling of 98922981 in words is "ninety-eight million, nine hundred twenty-two thousand, nine hundred eighty-one".