84385307 has 4 divisors (see below), whose sum is σ = 86347800. Its totient is φ = 82422816.

The previous prime is 84385303. The next prime is 84385309. The reversal of 84385307 is 70358348.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84385307 - 2² = 84385303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84385303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981182 + ... + 981267.

It is an arithmetic number, because the mean of its divisors is an integer number (21586950).

Almost surely, 2^84385307 is an apocalyptic number.

84385307 is a deficient number, since it is larger than the sum of its proper divisors (1962493).

84385307 is a wasteful number, since it uses less digits than its factorization.

84385307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962492.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 84385307 is about 9186.1475603215. The cubic root of 84385307 is about 438.6205194719.

The spelling of 84385307 in words is "eighty-four million, three hundred eighty-five thousand, three hundred seven".