5631965 has 16 divisors (see below), whose sum is σ = 7027776. Its totient is φ = 4329600.

The previous prime is 5631949. The next prime is 5631973. The reversal of 5631965 is 5691365.

It is not a de Polignac number, because 5631965 - 2⁴ = 5631949 is a prime.

It is a super-2 number, since 2×5631965² = 63438059522450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16850 + ... + 17180.

It is an arithmetic number, because the mean of its divisors is an integer number (439236).

Almost surely, 2^5631965 is an apocalyptic number.

It is an amenable number.

5631965 is a deficient number, since it is larger than the sum of its proper divisors (1395811).

5631965 is a wasteful number, since it uses less digits than its factorization.

5631965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its digits is 24300, while the sum is 35.

The square root of 5631965 is about 2373.1761417982. The cubic root of 5631965 is about 177.9180386875.

The spelling of 5631965 in words is "five million, six hundred thirty-one thousand, nine hundred sixty-five".