13603743 has 6 divisors (see below), whose sum is σ = 19649864. Its totient is φ = 9069156.

The previous prime is 13603703. The next prime is 13603771. The reversal of 13603743 is 34730631.

It is a happy number.

13603743 is a `hidden beast` number, since 13 + 603 + 7 + 43 = 666.

It is not a de Polignac number, because 13603743 - 2¹⁷ = 13472671 is a prime.

It is a super-2 number, since 2×13603743² = 370123647220098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13603703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 755755 + ... + 755772.

Almost surely, 2^13603743 is an apocalyptic number.

13603743 is a deficient number, since it is larger than the sum of its proper divisors (6046121).

13603743 is a wasteful number, since it uses less digits than its factorization.

13603743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511533 (or 1511530 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 13603743 is about 3688.3252296944. The cubic root of 13603743 is about 238.7185344532.

The spelling of 13603743 in words is "thirteen million, six hundred three thousand, seven hundred forty-three".