42497079 has 16 divisors (see below), whose sum is σ = 57937152. Its totient is φ = 27701568.

The previous prime is 42497069. The next prime is 42497099. The reversal of 42497079 is 97079424.

It is not a de Polignac number, because 42497079 - 2¹¹ = 42495031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42497079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42497069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24819 + ... + 26475.

It is an arithmetic number, because the mean of its divisors is an integer number (3621072).

Almost surely, 2^42497079 is an apocalyptic number.

42497079 is a deficient number, since it is larger than the sum of its proper divisors (15440073).

42497079 is a wasteful number, since it uses less digits than its factorization.

42497079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 42497079 is about 6518.9783708799. The cubic root of 42497079 is about 348.9686071767.

The spelling of 42497079 in words is "forty-two million, four hundred ninety-seven thousand, seventy-nine".