83671147 has 4 divisors (see below), whose sum is σ = 95624176. Its totient is φ = 71718120.

The previous prime is 83671087. The next prime is 83671151. The reversal of 83671147 is 74117638.

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

It is a cyclic number.

It is not a de Polignac number, because 83671147 - 2⁷ = 83671019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83671187) 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, 5976504 + ... + 5976517.

It is an arithmetic number, because the mean of its divisors is an integer number (23906044).

Almost surely, 2^83671147 is an apocalyptic number.

83671147 is a deficient number, since it is larger than the sum of its proper divisors (11953029).

83671147 is a wasteful number, since it uses less digits than its factorization.

83671147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11953028.

The product of its digits is 28224, while the sum is 37.

The square root of 83671147 is about 9147.1933946976. The cubic root of 83671147 is about 437.3796514687.

The spelling of 83671147 in words is "eighty-three million, six hundred seventy-one thousand, one hundred forty-seven".