84570345 has 32 divisors (see below), whose sum is σ = 154419840. Its totient is φ = 43882560.

The previous prime is 84570341. The next prime is 84570347. The reversal of 84570345 is 54307548.

84570345 is a `hidden beast` number, since 84 + 570 + 3 + 4 + 5 = 666.

It is not a de Polignac number, because 84570345 - 2² = 84570341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84570341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3471 + ... + 13460.

It is an arithmetic number, because the mean of its divisors is an integer number (4825620).

Almost surely, 2^84570345 is an apocalyptic number.

It is an amenable number.

84570345 is a deficient number, since it is larger than the sum of its proper divisors (69849495).

84570345 is a wasteful number, since it uses less digits than its factorization.

84570345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16982 (or 16976 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 84570345 is about 9196.2136230081. The cubic root of 84570345 is about 438.9408841412.

The spelling of 84570345 in words is "eighty-four million, five hundred seventy thousand, three hundred forty-five".