84195898 has 4 divisors (see below), whose sum is σ = 126293850. Its totient is φ = 42097948.

The previous prime is 84195871. The next prime is 84195899. The reversal of 84195898 is 89859148.

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

It can be written as a sum of positive squares in only one way, i.e., 79798489 + 4397409 = 8933^2 + 2097^2 .

It is not an unprimeable number, because it can be changed into a prime (84195899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21048973 + ... + 21048976.

Almost surely, 2^84195898 is an apocalyptic number.

84195898 is a deficient number, since it is larger than the sum of its proper divisors (42097952).

84195898 is a wasteful number, since it uses less digits than its factorization.

84195898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42097951.

The product of its digits is 829440, while the sum is 52.

The square root of 84195898 is about 9175.8322783277. The cubic root of 84195898 is about 438.2921016731.

The spelling of 84195898 in words is "eighty-four million, one hundred ninety-five thousand, eight hundred ninety-eight".