743383945 has 4 divisors (see below), whose sum is σ = 892060740. Its totient is φ = 594707152.

The previous prime is 743383931. The next prime is 743383951. The reversal of 743383945 is 549383347.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 386476281 + 356907664 = 19659^2 + 18892^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-743383945 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 743383895 and 743383904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74338390 + ... + 74338399.

It is an arithmetic number, because the mean of its divisors is an integer number (223015185).

Almost surely, 2^743383945 is an apocalyptic number.

It is an amenable number.

743383945 is a deficient number, since it is larger than the sum of its proper divisors (148676795).

743383945 is a wasteful number, since it uses less digits than its factorization.

743383945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148676794.

The product of its digits is 1088640, while the sum is 46.

The square root of 743383945 is about 27265.0682192435. The cubic root of 743383945 is about 905.8808086667.

It can be divided in two parts, 7433 and 83945, that added together give a triangular number (91378 = T₄₂₇).

The spelling of 743383945 in words is "seven hundred forty-three million, three hundred eighty-three thousand, nine hundred forty-five".