5640215 has 8 divisors (see below), whose sum is σ = 7735200. Its totient is φ = 3867552.

The previous prime is 5640211. The next prime is 5640251. The reversal of 5640215 is 5120465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5640215 - 2² = 5640211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80540 + ... + 80609.

It is an arithmetic number, because the mean of its divisors is an integer number (966900).

Almost surely, 2^5640215 is an apocalyptic number.

5640215 is a deficient number, since it is larger than the sum of its proper divisors (2094985).

5640215 is a wasteful number, since it uses less digits than its factorization.

5640215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161161.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 5640215 is about 2374.9136826420. The cubic root of 5640215 is about 178.0048708847.

The spelling of 5640215 in words is "five million, six hundred forty thousand, two hundred fifteen".