5648399 has 4 divisors (see below), whose sum is σ = 5716536. Its totient is φ = 5580264.

The previous prime is 5648393. The next prime is 5648411. The reversal of 5648399 is 9938465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9938465 = 5 ⋅1987693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5648399 is a prime.

It is a super-2 number, since 2×5648399² = 63808822526402, which contains 22 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 (5648393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33944 + ... + 34109.

It is an arithmetic number, because the mean of its divisors is an integer number (1429134).

Almost surely, 2^5648399 is an apocalyptic number.

5648399 is a deficient number, since it is larger than the sum of its proper divisors (68137).

5648399 is an equidigital number, since it uses as much as digits as its factorization.

5648399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68136.

The product of its digits is 233280, while the sum is 44.

The square root of 5648399 is about 2376.6360680592. The cubic root of 5648399 is about 178.0909248043.

The spelling of 5648399 in words is "five million, six hundred forty-eight thousand, three hundred ninety-nine".