8285407 has 4 divisors (see below), whose sum is σ = 8922760. Its totient is φ = 7648056.

The previous prime is 8285399. The next prime is 8285411. The reversal of 8285407 is 7045828.

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

It is not a de Polignac number, because 8285407 - 2³ = 8285399 is a prime.

It is a super-4 number, since 4×8285407⁴ (a number of 29 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8285107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318657 + ... + 318682.

It is an arithmetic number, because the mean of its divisors is an integer number (2230690).

Almost surely, 2^8285407 is an apocalyptic number.

8285407 is a deficient number, since it is larger than the sum of its proper divisors (637353).

8285407 is a wasteful number, since it uses less digits than its factorization.

8285407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637352.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 8285407 is about 2878.4382918520. The cubic root of 8285407 is about 202.3506555203.

The spelling of 8285407 in words is "eight million, two hundred eighty-five thousand, four hundred seven".