42928079 has 8 divisors (see below), whose sum is σ = 44046288. Its totient is φ = 41823360.

The previous prime is 42928069. The next prime is 42928099. The reversal of 42928079 is 97082924.

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

It is a cyclic number.

It is not a de Polignac number, because 42928079 - 2⁴ = 42928063 is a prime.

It is a super-3 number, since 3×42928079³ (a number of 24 digits) contains 333 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 (42928019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3239 + ... + 9815.

It is an arithmetic number, because the mean of its divisors is an integer number (5505786).

Almost surely, 2^42928079 is an apocalyptic number.

42928079 is a deficient number, since it is larger than the sum of its proper divisors (1118209).

42928079 is a wasteful number, since it uses less digits than its factorization.

42928079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6745.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 42928079 is about 6551.9523044662. The cubic root of 42928079 is about 350.1443730918.

The spelling of 42928079 in words is "forty-two million, nine hundred twenty-eight thousand, seventy-nine".