84961798 has 4 divisors (see below), whose sum is σ = 127442700. Its totient is φ = 42480898.

The previous prime is 84961781. The next prime is 84961817. The reversal of 84961798 is 89716948.

It is a happy number.

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

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, 21240448 + ... + 21240451.

It is an arithmetic number, because the mean of its divisors is an integer number (31860675).

Almost surely, 2^84961798 is an apocalyptic number.

84961798 is a deficient number, since it is larger than the sum of its proper divisors (42480902).

84961798 is a wasteful number, since it uses less digits than its factorization.

84961798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42480901.

The product of its digits is 870912, while the sum is 52.

The square root of 84961798 is about 9217.4724301188. The cubic root of 84961798 is about 439.6170876641.

The spelling of 84961798 in words is "eighty-four million, nine hundred sixty-one thousand, seven hundred ninety-eight".