98500019 has 4 divisors (see below), whose sum is σ = 99044400. Its totient is φ = 97955640.

The previous prime is 98500013. The next prime is 98500021. The reversal of 98500019 is 91000589.

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

It is a cyclic number.

It is not a de Polignac number, because 98500019 - 2⁸ = 98499763 is a prime.

It is a super-2 number, since 2×98500019² = 19404507486000722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98500013) 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, 271919 + ... + 272280.

It is an arithmetic number, because the mean of its divisors is an integer number (24761100).

Almost surely, 2^98500019 is an apocalyptic number.

98500019 is a deficient number, since it is larger than the sum of its proper divisors (544381).

98500019 is a wasteful number, since it uses less digits than its factorization.

98500019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544380.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 98500019 is about 9924.7175778457. The cubic root of 98500019 is about 461.8264169893.

The spelling of 98500019 in words is "ninety-eight million, five hundred thousand, nineteen".