84297998 has 4 divisors (see below), whose sum is σ = 126447000. Its totient is φ = 42148998.

The previous prime is 84297989. The next prime is 84298001. The reversal of 84297998 is 89979248.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21074498 + ... + 21074501.

It is an arithmetic number, because the mean of its divisors is an integer number (31611750).

Almost surely, 2^84297998 is an apocalyptic number.

84297998 is a deficient number, since it is larger than the sum of its proper divisors (42149002).

84297998 is a wasteful number, since it uses less digits than its factorization.

84297998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42149001.

The product of its digits is 2612736, while the sum is 56.

The square root of 84297998 is about 9181.3941207204. The cubic root of 84297998 is about 438.4691948107.

The spelling of 84297998 in words is "eighty-four million, two hundred ninety-seven thousand, nine hundred ninety-eight".