5723649 has 16 divisors (see below), whose sum is σ = 8625600. Its totient is φ = 3750048.

The previous prime is 5723639. The next prime is 5723659. The reversal of 5723649 is 9463275.

5723649 = 282² + 283² + ... + 340².

5723649 is a `hidden beast` number, since 5 + 7 + 2 + 3 + 649 = 666.

It is an interprime number because it is at equal distance from previous prime (5723639) and next prime (5723659).

It is not a de Polignac number, because 5723649 - 2⁴ = 5723633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5723639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204 + ... + 3389.

It is an arithmetic number, because the mean of its divisors is an integer number (539100).

Almost surely, 2^5723649 is an apocalyptic number.

5723649 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

5723649 is a deficient number, since it is larger than the sum of its proper divisors (2901951).

5723649 is a wasteful number, since it uses less digits than its factorization.

5723649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661 (or 3655 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 5723649 is about 2392.4148887683. The cubic root of 5723649 is about 178.8783022653.

The spelling of 5723649 in words is "five million, seven hundred twenty-three thousand, six hundred forty-nine".