84031147 has 2 divisors, whose sum is σ = 84031148. Its totient is φ = 84031146.

The previous prime is 84031141. The next prime is 84031177. The reversal of 84031147 is 74113048.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84031147 - 2³ = 84031139 is a prime.

It is a super-2 number, since 2×84031147² = 14122467332271218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84031141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42015573 + 42015574.

It is an arithmetic number, because the mean of its divisors is an integer number (42015574).

Almost surely, 2^84031147 is an apocalyptic number.

84031147 is a deficient number, since it is larger than the sum of its proper divisors (1).

84031147 is an equidigital number, since it uses as much as digits as its factorization.

84031147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 84031147 is about 9166.8504405821. The cubic root of 84031147 is about 438.0060378087.

The spelling of 84031147 in words is "eighty-four million, thirty-one thousand, one hundred forty-seven".