3642859 has 12 divisors (see below), whose sum is σ = 4085640. Its totient is φ = 3220800.

The previous prime is 3642839. The next prime is 3642883. The reversal of 3642859 is 9582463.

It is not a de Polignac number, because 3642859 - 2⁷ = 3642731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3642839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40887 + ... + 40975.

It is an arithmetic number, because the mean of its divisors is an integer number (340470).

Almost surely, 2^3642859 is an apocalyptic number.

3642859 is a deficient number, since it is larger than the sum of its proper divisors (442781).

3642859 is an equidigital number, since it uses as much as digits as its factorization.

3642859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 161 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 3642859 is about 1908.6275173538. The cubic root of 3642859 is about 153.8676971306.

It can be divided in two parts, 364 and 2859, that added together give a palindrome (3223).

The spelling of 3642859 in words is "three million, six hundred forty-two thousand, eight hundred fifty-nine".