84074047 has 2 divisors, whose sum is σ = 84074048. Its totient is φ = 84074046.

The previous prime is 84074033. The next prime is 84074051. The reversal of 84074047 is 74047048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84074047 - 2⁷ = 84073919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84074017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42037023 + 42037024.

It is an arithmetic number, because the mean of its divisors is an integer number (42037024).

Almost surely, 2^84074047 is an apocalyptic number.

84074047 is a deficient number, since it is larger than the sum of its proper divisors (1).

84074047 is an equidigital number, since it uses as much as digits as its factorization.

84074047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 84074047 is about 9169.1900950956. The cubic root of 84074047 is about 438.0805628030.

The spelling of 84074047 in words is "eighty-four million, seventy-four thousand, forty-seven".