743446081 has 6 divisors (see below), whose sum is σ = 864825090. Its totient is φ = 637239456.

The previous prime is 743446063. The next prime is 743446127. The reversal of 743446081 is 180644347.

It can be written as a sum of positive squares in only one way, i.e., 389667600 + 353778481 = 19740^2 + 18809^2 .

It is not a de Polignac number, because 743446081 - 2¹¹ = 743444033 is a prime.

It is a super-2 number, since 2×743446081² = 1105424150708517122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 743446081.

It is not an unprimeable number, because it can be changed into a prime (743446031) 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, 7586136 + ... + 7586233.

It is an arithmetic number, because the mean of its divisors is an integer number (144137515).

Almost surely, 2^743446081 is an apocalyptic number.

It is an amenable number.

743446081 is a deficient number, since it is larger than the sum of its proper divisors (121379009).

743446081 is a wasteful number, since it uses less digits than its factorization.

743446081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15172383 (or 15172376 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 743446081 is about 27266.2076754359. The cubic root of 743446081 is about 905.9060474154.

The spelling of 743446081 in words is "seven hundred forty-three million, four hundred forty-six thousand, eighty-one".