42806697 has 32 divisors (see below), whose sum is σ = 63348480. Its totient is φ = 25589760.

The previous prime is 42806693. The next prime is 42806711. The reversal of 42806697 is 79660824.

42806697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42806697 - 2² = 42806693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42806693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152197 + ... + 152477.

It is an arithmetic number, because the mean of its divisors is an integer number (1979640).

Almost surely, 2^42806697 is an apocalyptic number.

It is an amenable number.

42806697 is a deficient number, since it is larger than the sum of its proper divisors (20541783).

42806697 is a wasteful number, since it uses less digits than its factorization.

42806697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 42806697 is about 6542.6827066579. The cubic root of 42806697 is about 349.8140427138.

The spelling of 42806697 in words is "forty-two million, eight hundred six thousand, six hundred ninety-seven".