42517669 has 4 divisors (see below), whose sum is σ = 43506496. Its totient is φ = 41528844.

The previous prime is 42517661. The next prime is 42517693. The reversal of 42517669 is 96671524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42517669 - 2³ = 42517661 is a prime.

It is a super-2 number, since 2×42517669² = 3615504354387122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42517661) 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, 494349 + ... + 494434.

It is an arithmetic number, because the mean of its divisors is an integer number (10876624).

Almost surely, 2^42517669 is an apocalyptic number.

It is an amenable number.

42517669 is a deficient number, since it is larger than the sum of its proper divisors (988827).

42517669 is an equidigital number, since it uses as much as digits as its factorization.

42517669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988826.

The product of its digits is 90720, while the sum is 40.

The square root of 42517669 is about 6520.5574148228. The cubic root of 42517669 is about 349.0249569595.

The spelling of 42517669 in words is "forty-two million, five hundred seventeen thousand, six hundred sixty-nine".