5403949 has 2 divisors, whose sum is σ = 5403950. Its totient is φ = 5403948.

The previous prime is 5403917. The next prime is 5403973. The reversal of 5403949 is 9493045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3132900 + 2271049 = 1770^2 + 1507^2 .

It is a cyclic number.

It is not a de Polignac number, because 5403949 - 2⁵ = 5403917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5403989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2701974 + 2701975.

It is an arithmetic number, because the mean of its divisors is an integer number (2701975).

Almost surely, 2^5403949 is an apocalyptic number.

It is an amenable number.

5403949 is a deficient number, since it is larger than the sum of its proper divisors (1).

5403949 is an equidigital number, since it uses as much as digits as its factorization.

5403949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 5403949 is about 2324.6395419505. The cubic root of 5403949 is about 175.4838203389.

It can be divided in two parts, 540 and 3949, that added together give a square (4489 = 67²).

The spelling of 5403949 in words is "five million, four hundred three thousand, nine hundred forty-nine".