84427254 has 24 divisors (see below), whose sum is σ = 183148992. Its totient is φ = 28108080.

The previous prime is 84427199. The next prime is 84427261. The reversal of 84427254 is 45272448.

It is a super-2 number, since 2×84427254² = 14255922435961032, which contains 22 as substring.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 15472 + ... + 20204.

It is an arithmetic number, because the mean of its divisors is an integer number (7631208).

Almost surely, 2^84427254 is an apocalyptic number.

84427254 is an abundant number, since it is smaller than the sum of its proper divisors (98721738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84427254 is a wasteful number, since it uses less digits than its factorization.

84427254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5732 (or 5729 counting only the distinct ones).

The product of its digits is 71680, while the sum is 36.

The square root of 84427254 is about 9188.4304426817. The cubic root of 84427254 is about 438.6931852310.

It can be divided in two parts, 84427 and 254, that added together give a square (84681 = 291²).

The spelling of 84427254 in words is "eighty-four million, four hundred twenty-seven thousand, two hundred fifty-four".