42698039 has 4 divisors (see below), whose sum is σ = 42719040. Its totient is φ = 42677040.

The previous prime is 42698021. The next prime is 42698041. The reversal of 42698039 is 93089624.

It is a happy number.

42698039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42698039 - 2¹² = 42693943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42697987 and 42698005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42698069) 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 3 ways as a sum of consecutive naturals, for example, 7079 + ... + 11640.

It is an arithmetic number, because the mean of its divisors is an integer number (10679760).

Almost surely, 2^42698039 is an apocalyptic number.

42698039 is a deficient number, since it is larger than the sum of its proper divisors (21001).

42698039 is a wasteful number, since it uses less digits than its factorization.

42698039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21000.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 42698039 is about 6534.3736501672. The cubic root of 42698039 is about 349.5178094667.

The spelling of 42698039 in words is "forty-two million, six hundred ninety-eight thousand, thirty-nine".