84474151 has 2 divisors, whose sum is σ = 84474152. Its totient is φ = 84474150.

The previous prime is 84474121. The next prime is 84474199. The reversal of 84474151 is 15147448.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84474151 - 2¹¹ = 84472103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84474121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42237075 + 42237076.

It is an arithmetic number, because the mean of its divisors is an integer number (42237076).

Almost surely, 2^84474151 is an apocalyptic number.

84474151 is a deficient number, since it is larger than the sum of its proper divisors (1).

84474151 is an equidigital number, since it uses as much as digits as its factorization.

84474151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 34.

The square root of 84474151 is about 9190.9820476378. The cubic root of 84474151 is about 438.7743974983.

The spelling of 84474151 in words is "eighty-four million, four hundred seventy-four thousand, one hundred fifty-one".