743605641 has 12 divisors (see below), whose sum is σ = 1130628720. Its totient is φ = 469645560.

The previous prime is 743605609. The next prime is 743605673. The reversal of 743605641 is 146506347.

It is a happy number.

743605641 is a `hidden beast` number, since 7 + 4 + 3 + 6 + 0 + 5 + 641 = 666.

It is an interprime number because it is at equal distance from previous prime (743605609) and next prime (743605673).

It is not a de Polignac number, because 743605641 - 2⁵ = 743605609 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 743605596 and 743605605.

It is not an unprimeable number, because it can be changed into a prime (743605601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2174115 + ... + 2174456.

It is an arithmetic number, because the mean of its divisors is an integer number (94219060).

Almost surely, 2^743605641 is an apocalyptic number.

It is an amenable number.

743605641 is a deficient number, since it is larger than the sum of its proper divisors (387023079).

743605641 is a wasteful number, since it uses less digits than its factorization.

743605641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4348596 (or 4348593 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 743605641 is about 27269.1334845829. The cubic root of 743605641 is about 905.9708519488.

The spelling of 743605641 in words is "seven hundred forty-three million, six hundred five thousand, six hundred forty-one".