84198278 has 16 divisors (see below), whose sum is σ = 127488816. Its totient is φ = 41704320.

The previous prime is 84198269. The next prime is 84198287. The reversal of 84198278 is 87289148.

It is an interprime number because it is at equal distance from previous prime (84198269) and next prime (84198287).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130625 + ... + 131267.

It is an arithmetic number, because the mean of its divisors is an integer number (7968051).

Almost surely, 2^84198278 is an apocalyptic number.

84198278 is a deficient number, since it is larger than the sum of its proper divisors (43290538).

84198278 is a wasteful number, since it uses less digits than its factorization.

84198278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159.

The product of its digits is 258048, while the sum is 47.

The square root of 84198278 is about 9175.9619659194. The cubic root of 84198278 is about 438.2962314285.

The spelling of 84198278 in words is "eighty-four million, one hundred ninety-eight thousand, two hundred seventy-eight".