83047870 has 16 divisors (see below), whose sum is σ = 150939360. Its totient is φ = 32896224.

The previous prime is 83047849. The next prime is 83047883. The reversal of 83047870 is 7874038.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39285 + ... + 41344.

It is an arithmetic number, because the mean of its divisors is an integer number (9433710).

Almost surely, 2^83047870 is an apocalyptic number.

83047870 is a deficient number, since it is larger than the sum of its proper divisors (67891490).

83047870 is a wasteful number, since it uses less digits than its factorization.

83047870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80739.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 83047870 is about 9113.0604080078. The cubic root of 83047870 is about 436.2909113993.

The spelling of 83047870 in words is "eighty-three million, forty-seven thousand, eight hundred seventy".