5399965 has 24 divisors (see below), whose sum is σ = 7139592. Its totient is φ = 3916800.

The previous prime is 5399941. The next prime is 5399993. The reversal of 5399965 is 5699935.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 643204 + 4756761 = 802^2 + 2181^2 .

It is not a de Polignac number, because 5399965 - 2⁹ = 5399453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53415 + ... + 53515.

It is an arithmetic number, because the mean of its divisors is an integer number (297483).

Almost surely, 2^5399965 is an apocalyptic number.

It is an amenable number.

5399965 is a deficient number, since it is larger than the sum of its proper divisors (1739627).

5399965 is a wasteful number, since it uses less digits than its factorization.

5399965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 160 counting only the distinct ones).

The product of its digits is 328050, while the sum is 46.

The square root of 5399965 is about 2323.7824769113. The cubic root of 5399965 is about 175.4406852526.

The spelling of 5399965 in words is "five million, three hundred ninety-nine thousand, nine hundred sixty-five".