42651693 has 12 divisors (see below), whose sum is σ = 70409248. Its totient is φ = 24372360.

The previous prime is 42651673. The next prime is 42651703. The reversal of 42651693 is 39615624.

It is a happy number.

It is not a de Polignac number, because 42651693 - 2⁸ = 42651437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42651613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338443 + ... + 338568.

Almost surely, 2^42651693 is an apocalyptic number.

It is an amenable number.

42651693 is a deficient number, since it is larger than the sum of its proper divisors (27757555).

42651693 is a wasteful number, since it uses less digits than its factorization.

42651693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677024 (or 677021 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 42651693 is about 6530.8263642513. The cubic root of 42651693 is about 349.3913039158.

The spelling of 42651693 in words is "forty-two million, six hundred fifty-one thousand, six hundred ninety-three".