42693577 has 4 divisors (see below), whose sum is σ = 42729876. Its totient is φ = 42657280.

The previous prime is 42693559. The next prime is 42693583. The reversal of 42693577 is 77539624.

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 26460736 + 16232841 = 5144^2 + 4029^2 .

It is a cyclic number.

It is not a de Polignac number, because 42693577 - 2¹⁵ = 42660809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42693517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16324 + ... + 18757.

It is an arithmetic number, because the mean of its divisors is an integer number (10682469).

Almost surely, 2^42693577 is an apocalyptic number.

It is an amenable number.

42693577 is a deficient number, since it is larger than the sum of its proper divisors (36299).

42693577 is a wasteful number, since it uses less digits than its factorization.

42693577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36298.

The product of its digits is 317520, while the sum is 43.

The square root of 42693577 is about 6534.0322160210. The cubic root of 42693577 is about 349.5056340224.

The spelling of 42693577 in words is "forty-two million, six hundred ninety-three thousand, five hundred seventy-seven".