84746147 has 2 divisors, whose sum is σ = 84746148. Its totient is φ = 84746146.

The previous prime is 84746143. The next prime is 84746153. The reversal of 84746147 is 74164748.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84746147 - 2² = 84746143 is a prime.

It is equal to p_4929863 and since 84746147 and 4929863 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (84746143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42373073 + 42373074.

It is an arithmetic number, because the mean of its divisors is an integer number (42373074).

Almost surely, 2^84746147 is an apocalyptic number.

84746147 is a deficient number, since it is larger than the sum of its proper divisors (1).

84746147 is an equidigital number, since it uses as much as digits as its factorization.

84746147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 41.

The square root of 84746147 is about 9205.7670511479. The cubic root of 84746147 is about 439.2448254990.

The spelling of 84746147 in words is "eighty-four million, seven hundred forty-six thousand, one hundred forty-seven".