98419381 has 4 divisors (see below), whose sum is σ = 98455500. Its totient is φ = 98383264.

The previous prime is 98419379. The next prime is 98419397. The reversal of 98419381 is 18391489.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18391489 = 449 ⋅40961.

It can be written as a sum of positive squares in 2 ways, for example, as 50339025 + 48080356 = 7095^2 + 6934^2 .

It is a cyclic number.

It is not a de Polignac number, because 98419381 - 2¹ = 98419379 is a prime.

It is a super-2 number, since 2×98419381² = 19372749112846322, 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 (98419331) 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, 13606 + ... + 19543.

It is an arithmetic number, because the mean of its divisors is an integer number (24613875).

Almost surely, 2^98419381 is an apocalyptic number.

It is an amenable number.

98419381 is a deficient number, since it is larger than the sum of its proper divisors (36119).

98419381 is a wasteful number, since it uses less digits than its factorization.

98419381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36118.

The product of its digits is 62208, while the sum is 43.

The square root of 98419381 is about 9920.6542626986. The cubic root of 98419381 is about 461.7003563512.

The spelling of 98419381 in words is "ninety-eight million, four hundred nineteen thousand, three hundred eighty-one".