98901281 has 4 divisors (see below), whose sum is σ = 102311700. Its totient is φ = 95490864.

The previous prime is 98901239. The next prime is 98901337. The reversal of 98901281 is 18210989.

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

It can be written as a sum of positive squares in 2 ways, for example, as 70980625 + 27920656 = 8425^2 + 5284^2 .

It is a cyclic number.

It is not a de Polignac number, because 98901281 - 2⁶ = 98901217 is a prime.

It is a super-2 number, since 2×98901281² = 19562926766881922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98901211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1705166 + ... + 1705223.

It is an arithmetic number, because the mean of its divisors is an integer number (25577925).

Almost surely, 2^98901281 is an apocalyptic number.

98901281 is the 4448-th centered decagonal number.

It is an amenable number.

98901281 is a deficient number, since it is larger than the sum of its proper divisors (3410419).

98901281 is a wasteful number, since it uses less digits than its factorization.

98901281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410418.

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 98901281 is about 9944.9123173611. The cubic root of 98901281 is about 462.4526852986.

The spelling of 98901281 in words is "ninety-eight million, nine hundred one thousand, two hundred eighty-one".