84872542 has 16 divisors (see below), whose sum is σ = 131426064. Its totient is φ = 41080000.

The previous prime is 84872539. The next prime is 84872581. The reversal of 84872542 is 24527848.

It is a junction number, because it is equal to n+sod(n) for n = 84872495 and 84872504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6792 + ... + 14692.

It is an arithmetic number, because the mean of its divisors is an integer number (8214129).

Almost surely, 2^84872542 is an apocalyptic number.

84872542 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

84872542 is a deficient number, since it is larger than the sum of its proper divisors (46553522).

84872542 is a wasteful number, since it uses less digits than its factorization.

84872542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8075.

The product of its digits is 143360, while the sum is 40.

The square root of 84872542 is about 9212.6294834862. The cubic root of 84872542 is about 439.4630882106.

The spelling of 84872542 in words is "eighty-four million, eight hundred seventy-two thousand, five hundred forty-two".