42769117 has 4 divisors (see below), whose sum is σ = 42928380. Its totient is φ = 42609856.

The previous prime is 42769087. The next prime is 42769141. The reversal of 42769117 is 71196724.

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 19061956 + 23707161 = 4366^2 + 4869^2 .

It is a cyclic number.

It is not a de Polignac number, because 42769117 - 2⁷ = 42768989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42769147) 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, 79228 + ... + 79765.

It is an arithmetic number, because the mean of its divisors is an integer number (10732095).

Almost surely, 2^42769117 is an apocalyptic number.

It is an amenable number.

42769117 is a deficient number, since it is larger than the sum of its proper divisors (159263).

42769117 is a wasteful number, since it uses less digits than its factorization.

42769117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159262.

The product of its digits is 21168, while the sum is 37.

The square root of 42769117 is about 6539.8101654406. The cubic root of 42769117 is about 349.7116454918.

The spelling of 42769117 in words is "forty-two million, seven hundred sixty-nine thousand, one hundred seventeen".