98072281 has 4 divisors (see below), whose sum is σ = 103234000. Its totient is φ = 92910564.

The previous prime is 98072257. The next prime is 98072291. The reversal of 98072281 is 18227089.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18227089 = 109 ⋅167221.

It is a cyclic number.

It is not a de Polignac number, because 98072281 - 2¹⁹ = 97547993 is a prime.

It is a super-2 number, since 2×98072281² = 19236344601085922, 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 98072281.

It is not an unprimeable number, because it can be changed into a prime (98072231) 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, 2580831 + ... + 2580868.

It is an arithmetic number, because the mean of its divisors is an integer number (25808500).

Almost surely, 2^98072281 is an apocalyptic number.

It is an amenable number.

98072281 is a deficient number, since it is larger than the sum of its proper divisors (5161719).

98072281 is a wasteful number, since it uses less digits than its factorization.

98072281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5161718.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 98072281 is about 9903.1450055020. The cubic root of 98072281 is about 461.1569506511.

The spelling of 98072281 in words is "ninety-eight million, seventy-two thousand, two hundred eighty-one".