8470385 has 32 divisors (see below), whose sum is σ = 12960000. Its totient is φ = 5268480.

The previous prime is 8470381. The next prime is 8470393. The reversal of 8470385 is 5830748.

8470385 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8470385 - 2² = 8470381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

8470385 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (8470381) 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, 18641 + ... + 19089.

It is an arithmetic number, because the mean of its divisors is an integer number (405000).

Almost surely, 2^8470385 is an apocalyptic number.

It is an amenable number.

8470385 is a deficient number, since it is larger than the sum of its proper divisors (4489615).

8470385 is a wasteful number, since it uses less digits than its factorization.

8470385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 8470385 is about 2910.3925852022. The cubic root of 8470385 is about 203.8454631883.

The spelling of 8470385 in words is "eight million, four hundred seventy thousand, three hundred eighty-five".