84872390 has 8 divisors (see below), whose sum is σ = 152770320. Its totient is φ = 33948952.

The previous prime is 84872377. The next prime is 84872393. The reversal of 84872390 is 9327848.

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 (84872393) 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, 4243610 + ... + 4243629.

It is an arithmetic number, because the mean of its divisors is an integer number (19096290).

Almost surely, 2^84872390 is an apocalyptic number.

84872390 is a deficient number, since it is larger than the sum of its proper divisors (67897930).

84872390 is a wasteful number, since it uses less digits than its factorization.

84872390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8487246.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 84872390 is about 9212.6212339377. The cubic root of 84872390 is about 439.4628258626.

The spelling of 84872390 in words is "eighty-four million, eight hundred seventy-two thousand, three hundred ninety".