82202947 has 4 divisors (see below), whose sum is σ = 83754000. Its totient is φ = 80651896.

The previous prime is 82202927. The next prime is 82202957. The reversal of 82202947 is 74920228.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82202947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82202927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775447 + ... + 775552.

It is an arithmetic number, because the mean of its divisors is an integer number (20938500).

Almost surely, 2^82202947 is an apocalyptic number.

82202947 is a deficient number, since it is larger than the sum of its proper divisors (1551053).

82202947 is a wasteful number, since it uses less digits than its factorization.

82202947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551052.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 82202947 is about 9066.5840866337. The cubic root of 82202947 is about 434.8062677197.

The spelling of 82202947 in words is "eighty-two million, two hundred two thousand, nine hundred forty-seven".