743128057 has 8 divisors (see below), whose sum is σ = 893988800. Its totient is φ = 603442224.

The previous prime is 743128049. The next prime is 743128073. The reversal of 743128057 is 750821347.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 743128057 - 2³ = 743128049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (743128007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2793582 + ... + 2793847.

It is an arithmetic number, because the mean of its divisors is an integer number (111748600).

Almost surely, 2^743128057 is an apocalyptic number.

It is an amenable number.

743128057 is a deficient number, since it is larger than the sum of its proper divisors (150860743).

743128057 is a wasteful number, since it uses less digits than its factorization.

743128057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587455.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 743128057 is about 27260.3752175204. The cubic root of 743128057 is about 905.7768558205.

It can be divided in two parts, 74312 and 8057, that added together give a square (82369 = 287²).

The spelling of 743128057 in words is "seven hundred forty-three million, one hundred twenty-eight thousand, fifty-seven".