42589657 has 4 divisors (see below), whose sum is σ = 46461456. Its totient is φ = 38717860.

The previous prime is 42589639. The next prime is 42589663. The reversal of 42589657 is 75698524.

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 42589657 - 2¹¹ = 42587609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42589637) 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, 1935883 + ... + 1935904.

It is an arithmetic number, because the mean of its divisors is an integer number (11615364).

Almost surely, 2^42589657 is an apocalyptic number.

It is an amenable number.

42589657 is a deficient number, since it is larger than the sum of its proper divisors (3871799).

42589657 is a wasteful number, since it uses less digits than its factorization.

42589657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871798.

The product of its digits is 604800, while the sum is 46.

The square root of 42589657 is about 6526.0751604621. The cubic root of 42589657 is about 349.2218275954.

The spelling of 42589657 in words is "forty-two million, five hundred eighty-nine thousand, six hundred fifty-seven".