78300098 has 6 divisors (see below), whose sum is σ = 117468921. Its totient is φ = 39143792.

The previous prime is 78300091. The next prime is 78300109. The reversal of 78300098 is 89000387.

It can be written as a sum of positive squares in 2 ways, for example, as 47018449 + 31281649 = 6857^2 + 5593^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6257.

It is a super-2 number, since 2×78300098² = 12261810693619208, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78300091) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9386 + ... + 15642.

Almost surely, 2^78300098 is an apocalyptic number.

78300098 is a deficient number, since it is larger than the sum of its proper divisors (39168823).

78300098 is an frugal number, since it uses more digits than its factorization.

78300098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12516 (or 6259 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 78300098 is about 8848.7342597685. The cubic root of 78300098 is about 427.8131226257.

The spelling of 78300098 in words is "seventy-eight million, three hundred thousand, ninety-eight".