3640319 has 4 divisors (see below), whose sum is σ = 3738744. Its totient is φ = 3541896.

The previous prime is 3640309. The next prime is 3640327. The reversal of 3640319 is 9130463.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3640319 is a prime.

It is a super-2 number, since 2×3640319² = 26503844843522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640309) 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, 49157 + ... + 49230.

It is an arithmetic number, because the mean of its divisors is an integer number (934686).

Almost surely, 2^3640319 is an apocalyptic number.

3640319 is a deficient number, since it is larger than the sum of its proper divisors (98425).

3640319 is an equidigital number, since it uses as much as digits as its factorization.

3640319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98424.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 3640319 is about 1907.9620017181. The cubic root of 3640319 is about 153.8319271652.

The spelling of 3640319 in words is "three million, six hundred forty thousand, three hundred nineteen".