82947075 has 12 divisors (see below), whose sum is σ = 137139288. Its totient is φ = 44238400.

The previous prime is 82947071. The next prime is 82947079. The reversal of 82947075 is 57074928.

It is an interprime number because it is at equal distance from previous prime (82947071) and next prime (82947079).

It is not a de Polignac number, because 82947075 - 2² = 82947071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82947071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 552906 + ... + 553055.

It is an arithmetic number, because the mean of its divisors is an integer number (11428274).

Almost surely, 2^82947075 is an apocalyptic number.

82947075 is a deficient number, since it is larger than the sum of its proper divisors (54192213).

82947075 is a wasteful number, since it uses less digits than its factorization.

82947075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105974 (or 1105969 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 82947075 is about 9107.5284792308. The cubic root of 82947075 is about 436.1143315320.

The spelling of 82947075 in words is "eighty-two million, nine hundred forty-seven thousand, seventy-five".