743481653 has 4 divisors (see below), whose sum is σ = 760771968. Its totient is φ = 726191340.

The previous prime is 743481643. The next prime is 743481677. The reversal of 743481653 is 356184347.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 743481653 - 2¹⁰ = 743480629 is a prime.

It is a super-2 number, since 2×743481653² = 1105529936695224818, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 743481653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743481643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8645093 + ... + 8645178.

It is an arithmetic number, because the mean of its divisors is an integer number (190192992).

Almost surely, 2^743481653 is an apocalyptic number.

It is an amenable number.

743481653 is a deficient number, since it is larger than the sum of its proper divisors (17290315).

743481653 is a wasteful number, since it uses less digits than its factorization.

743481653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17290314.

The product of its digits is 241920, while the sum is 41.

The square root of 743481653 is about 27266.8599769024. The cubic root of 743481653 is about 905.9204956167.

The spelling of 743481653 in words is "seven hundred forty-three million, four hundred eighty-one thousand, six hundred fifty-three".