42929817 has 8 divisors (see below), whose sum is σ = 65416896. Its totient is φ = 24531312.

The previous prime is 42929813. The next prime is 42929839. The reversal of 42929817 is 71892924.

42929817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42929817 - 2² = 42929813 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42929813) 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 7 ways as a sum of consecutive naturals, for example, 1022118 + ... + 1022159.

It is an arithmetic number, because the mean of its divisors is an integer number (8177112).

Almost surely, 2^42929817 is an apocalyptic number.

It is an amenable number.

42929817 is a deficient number, since it is larger than the sum of its proper divisors (22487079).

42929817 is a wasteful number, since it uses less digits than its factorization.

42929817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044287.

The product of its digits is 72576, while the sum is 42.

The square root of 42929817 is about 6552.0849353469. The cubic root of 42929817 is about 350.1490983805.

The spelling of 42929817 in words is "forty-two million, nine hundred twenty-nine thousand, eight hundred seventeen".