84462172 has 12 divisors (see below), whose sum is σ = 147941640. Its totient is φ = 42193136.

The previous prime is 84462151. The next prime is 84462193. The reversal of 84462172 is 27126448.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (84462151) and next prime (84462193).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4147 + ... + 13642.

It is an arithmetic number, because the mean of its divisors is an integer number (12328470).

Almost surely, 2^84462172 is an apocalyptic number.

It is an amenable number.

84462172 is a deficient number, since it is larger than the sum of its proper divisors (63479468).

84462172 is a wasteful number, since it uses less digits than its factorization.

84462172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18980 (or 18978 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 84462172 is about 9190.3303531484. The cubic root of 84462172 is about 438.7536561357.

The spelling of 84462172 in words is "eighty-four million, four hundred sixty-two thousand, one hundred seventy-two".