84270738 has 16 divisors (see below), whose sum is σ = 177412320. Its totient is φ = 26611776.

The previous prime is 84270731. The next prime is 84270743. The reversal of 84270738 is 83707248.

It is a junction number, because it is equal to n+sod(n) for n = 84270696 and 84270705.

It is not an unprimeable number, because it can be changed into a prime (84270731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369495 + ... + 369722.

It is an arithmetic number, because the mean of its divisors is an integer number (11088270).

Almost surely, 2^84270738 is an apocalyptic number.

84270738 is an abundant number, since it is smaller than the sum of its proper divisors (93141582).

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

84270738 is a wasteful number, since it uses less digits than its factorization.

84270738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739241.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 84270738 is about 9179.9094766779. The cubic root of 84270738 is about 438.4219261560.

The spelling of 84270738 in words is "eighty-four million, two hundred seventy thousand, seven hundred thirty-eight".