84049425 has 18 divisors (see below), whose sum is σ = 150542262. Its totient is φ = 44826240.

The previous prime is 84049403. The next prime is 84049447. The reversal of 84049425 is 52494048.

It is an interprime number because it is at equal distance from previous prime (84049403) and next prime (84049447).

It can be written as a sum of positive squares in 3 ways, for example, as 12680721 + 71368704 = 3561^2 + 8448^2 .

It is not a de Polignac number, because 84049425 - 2¹⁷ = 83918353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84049425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 186552 + ... + 187001.

It is an arithmetic number, because the mean of its divisors is an integer number (8363459).

Almost surely, 2^84049425 is an apocalyptic number.

It is an amenable number.

84049425 is a deficient number, since it is larger than the sum of its proper divisors (66492837).

84049425 is a wasteful number, since it uses less digits than its factorization.

84049425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373569 (or 373561 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 84049425 is about 9167.8473482056. The cubic root of 84049425 is about 438.0377930734.

The spelling of 84049425 in words is "eighty-four million, forty-nine thousand, four hundred twenty-five".