82947574 has 16 divisors (see below), whose sum is σ = 127484928. Its totient is φ = 40458472.

The previous prime is 82947533. The next prime is 82947589. The reversal of 82947574 is 47574928.

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, 31347 + ... + 33889.

It is an arithmetic number, because the mean of its divisors is an integer number (7967808).

Almost surely, 2^82947574 is an apocalyptic number.

82947574 is a deficient number, since it is larger than the sum of its proper divisors (44537354).

82947574 is a wasteful number, since it uses less digits than its factorization.

82947574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939.

The product of its digits is 564480, while the sum is 46.

The square root of 82947574 is about 9107.5558741080. Note that the first 3 decimals coincide. The cubic root of 82947574 is about 436.1152060680.

It can be divided in two parts, 82947 and 574, that added together give a 4-th power (83521 = 17⁴).

The spelling of 82947574 in words is "eighty-two million, nine hundred forty-seven thousand, five hundred seventy-four".