84854747 has 2 divisors, whose sum is σ = 84854748. Its totient is φ = 84854746.

The previous prime is 84854729. The next prime is 84854761. The reversal of 84854747 is 74745848.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84854747 - 2⁶ = 84854683 is a prime.

It is not a weakly prime, because it can be changed into another prime (84854717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42427373 + 42427374.

It is an arithmetic number, because the mean of its divisors is an integer number (42427374).

Almost surely, 2^84854747 is an apocalyptic number.

84854747 is a deficient number, since it is larger than the sum of its proper divisors (1).

84854747 is an equidigital number, since it uses as much as digits as its factorization.

84854747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1003520, while the sum is 47.

The square root of 84854747 is about 9211.6636391045. The cubic root of 84854747 is about 439.4323723785.

The spelling of 84854747 in words is "eighty-four million, eight hundred fifty-four thousand, seven hundred forty-seven".