57643345 has 8 divisors (see below), whose sum is σ = 73241064. Its totient is φ = 43401984.

The previous prime is 57643343. The next prime is 57643351. The reversal of 57643345 is 54334675.

It can be written as a sum of positive squares in 4 ways, for example, as 27217089 + 30426256 = 5217^2 + 5516^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 57643345 - 2¹ = 57643343 is a prime.

It is a super-3 number, since 3×57643345³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57643343) 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, 338994 + ... + 339163.

It is an arithmetic number, because the mean of its divisors is an integer number (9155133).

Almost surely, 2^57643345 is an apocalyptic number.

It is an amenable number.

57643345 is a deficient number, since it is larger than the sum of its proper divisors (15597719).

57643345 is a wasteful number, since it uses less digits than its factorization.

57643345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678179.

The product of its digits is 151200, while the sum is 37.

The square root of 57643345 is about 7592.3214499914. The cubic root of 57643345 is about 386.2926025561.

The spelling of 57643345 in words is "fifty-seven million, six hundred forty-three thousand, three hundred forty-five".