859402005 has 32 divisors (see below), whose sum is σ = 1714341888. Its totient is φ = 357153600.

The previous prime is 859402001. The next prime is 859402013. The reversal of 859402005 is 500204958.

It is not a de Polignac number, because 859402005 - 2² = 859402001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859402001) 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 31 ways as a sum of consecutive naturals, for example, 370881 + ... + 373190.

It is an arithmetic number, because the mean of its divisors is an integer number (53573184).

Almost surely, 2^859402005 is an apocalyptic number.

It is an amenable number.

859402005 is a deficient number, since it is larger than the sum of its proper divisors (854939883).

859402005 is a wasteful number, since it uses less digits than its factorization.

859402005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744097.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 859402005 is about 29315.5590941056. The cubic root of 859402005 is about 950.7480737509.

The spelling of 859402005 in words is "eight hundred fifty-nine million, four hundred two thousand, five".