5391765 has 20 divisors (see below), whose sum is σ = 9665964. Its totient is φ = 2875392.

The previous prime is 5391761. The next prime is 5391791. The reversal of 5391765 is 5671935.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1920996 + 3470769 = 1386^2 + 1863^2 .

It is not a de Polignac number, because 5391765 - 2² = 5391761 is a prime.

It is a super-2 number, since 2×5391765² = 58142259630450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5391761) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6252 + ... + 7061.

Almost surely, 2^5391765 is an apocalyptic number.

It is an amenable number.

5391765 is a deficient number, since it is larger than the sum of its proper divisors (4274199).

5391765 is a wasteful number, since it uses less digits than its factorization.

5391765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13330 (or 13321 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 5391765 is about 2322.0174417950. The cubic root of 5391765 is about 175.3518363789.

It can be divided in two parts, 539 and 1765, that added together give a square (2304 = 48²).

The spelling of 5391765 in words is "five million, three hundred ninety-one thousand, seven hundred sixty-five".