84641745 has 8 divisors (see below), whose sum is σ = 135426816. Its totient is φ = 45142256.

The previous prime is 84641743. The next prime is 84641747. The reversal of 84641745 is 54714648.

It is an interprime number because it is at equal distance from previous prime (84641743) and next prime (84641747).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84641745 - 2¹ = 84641743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84641741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2821377 + ... + 2821406.

It is an arithmetic number, because the mean of its divisors is an integer number (16928352).

Almost surely, 2^84641745 is an apocalyptic number.

It is an amenable number.

84641745 is a deficient number, since it is larger than the sum of its proper divisors (50785071).

84641745 is a wasteful number, since it uses less digits than its factorization.

84641745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5642791.

The product of its digits is 107520, while the sum is 39.

The square root of 84641745 is about 9200.0948364677. The cubic root of 84641745 is about 439.0643772457.

The spelling of 84641745 in words is "eighty-four million, six hundred forty-one thousand, seven hundred forty-five".