82493847 has 18 divisors (see below), whose sum is σ = 124570992. Its totient is φ = 52601736.

The previous prime is 82493837. The next prime is 82493881. The reversal of 82493847 is 74839428.

82493847 is a `hidden beast` number, since 82 + 493 + 84 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-82493847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82493837) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3903 + ... + 13424.

Almost surely, 2^82493847 is an apocalyptic number.

82493847 is a deficient number, since it is larger than the sum of its proper divisors (42077145).

82493847 is a wasteful number, since it uses less digits than its factorization.

82493847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17379 (or 17353 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 82493847 is about 9082.6123444745. The cubic root of 82493847 is about 435.3185617373.

The spelling of 82493847 in words is "eighty-two million, four hundred ninety-three thousand, eight hundred forty-seven".