84925447 has 2 divisors, whose sum is σ = 84925448. Its totient is φ = 84925446.

The previous prime is 84925429. The next prime is 84925469. The reversal of 84925447 is 74452948.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84925447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84925417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42462723 + 42462724.

It is an arithmetic number, because the mean of its divisors is an integer number (42462724).

Almost surely, 2^84925447 is an apocalyptic number.

84925447 is a deficient number, since it is larger than the sum of its proper divisors (1).

84925447 is an equidigital number, since it uses as much as digits as its factorization.

84925447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 43.

The square root of 84925447 is about 9215.5003662308. The cubic root of 84925447 is about 439.5543818333.

The spelling of 84925447 in words is "eighty-four million, nine hundred twenty-five thousand, four hundred forty-seven".