5387749 has 2 divisors, whose sum is σ = 5387750. Its totient is φ = 5387748.

The previous prime is 5387747. The next prime is 5387783. The reversal of 5387749 is 9477835.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3744225 + 1643524 = 1935^2 + 1282^2 .

It is a cyclic number.

It is not a de Polignac number, because 5387749 - 2¹ = 5387747 is a prime.

Together with 5387747, it forms a pair of twin primes.

5387749 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5387741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2693874 + 2693875.

It is an arithmetic number, because the mean of its divisors is an integer number (2693875).

Almost surely, 2^5387749 is an apocalyptic number.

It is an amenable number.

5387749 is a deficient number, since it is larger than the sum of its proper divisors (1).

5387749 is an equidigital number, since it uses as much as digits as its factorization.

5387749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 5387749 is about 2321.1525154543. The cubic root of 5387749 is about 175.3082892356.

The spelling of 5387749 in words is "five million, three hundred eighty-seven thousand, seven hundred forty-nine".