84047845 has 8 divisors (see below), whose sum is σ = 115265664. Its totient is φ = 57632784.

The previous prime is 84047837. The next prime is 84047869. The reversal of 84047845 is 54874048.

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 84047845 - 2³ = 84047837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84047798 and 84047807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200649 + ... + 1200718.

It is an arithmetic number, because the mean of its divisors is an integer number (14408208).

Almost surely, 2^84047845 is an apocalyptic number.

It is an amenable number.

84047845 is a deficient number, since it is larger than the sum of its proper divisors (31217819).

84047845 is a wasteful number, since it uses less digits than its factorization.

84047845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401379.

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 84047845 is about 9167.7611770813. The cubic root of 84047845 is about 438.0350482438.

The spelling of 84047845 in words is "eighty-four million, forty-seven thousand, eight hundred forty-five".