84199478 has 8 divisors (see below), whose sum is σ = 137781000. Its totient is φ = 38272480.

The previous prime is 84199471. The next prime is 84199517. The reversal of 84199478 is 87499148.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84199471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1913603 + ... + 1913646.

It is an arithmetic number, because the mean of its divisors is an integer number (17222625).

Almost surely, 2^84199478 is an apocalyptic number.

84199478 is a deficient number, since it is larger than the sum of its proper divisors (53581522).

84199478 is a wasteful number, since it uses less digits than its factorization.

84199478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827262.

The product of its digits is 580608, while the sum is 50.

The square root of 84199478 is about 9176.0273539261. The cubic root of 84199478 is about 438.2983136285.

The spelling of 84199478 in words is "eighty-four million, one hundred ninety-nine thousand, four hundred seventy-eight".