5397949 has 2 divisors, whose sum is σ = 5397950. Its totient is φ = 5397948.

The previous prime is 5397947. The next prime is 5397961. The reversal of 5397949 is 9497935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4485924 + 912025 = 2118^2 + 955^2 .

It is a cyclic number.

It is not a de Polignac number, because 5397949 - 2¹ = 5397947 is a prime.

Together with 5397947, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 5397899 and 5397908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5397943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2698974 + 2698975.

It is an arithmetic number, because the mean of its divisors is an integer number (2698975).

Almost surely, 2^5397949 is an apocalyptic number.

It is an amenable number.

5397949 is a deficient number, since it is larger than the sum of its proper divisors (1).

5397949 is an equidigital number, since it uses as much as digits as its factorization.

5397949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 46.

The square root of 5397949 is about 2323.3486608772. The cubic root of 5397949 is about 175.4188497750.

The spelling of 5397949 in words is "five million, three hundred ninety-seven thousand, nine hundred forty-nine".