98660381 has 4 divisors (see below), whose sum is σ = 100132992. Its totient is φ = 97187772.

The previous prime is 98660377. The next prime is 98660399. The reversal of 98660381 is 18306689.

It is a happy number.

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: 18306689 = 23 ⋅795943.

It is a cyclic number.

It is not a de Polignac number, because 98660381 - 2² = 98660377 is a prime.

It is a super-2 number, since 2×98660381² = 19467741558130322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98660311) 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, 736205 + ... + 736338.

It is an arithmetic number, because the mean of its divisors is an integer number (25033248).

Almost surely, 2^98660381 is an apocalyptic number.

It is an amenable number.

98660381 is a deficient number, since it is larger than the sum of its proper divisors (1472611).

98660381 is a wasteful number, since it uses less digits than its factorization.

98660381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472610.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 98660381 is about 9932.7932123849. The cubic root of 98660381 is about 462.0769051089.

The spelling of 98660381 in words is "ninety-eight million, six hundred sixty thousand, three hundred eighty-one".