42070797 has 12 divisors (see below), whose sum is σ = 62251644. Its totient is φ = 27362880.

The previous prime is 42070783. The next prime is 42070823. The reversal of 42070797 is 79707024.

It can be written as a sum of positive squares in 2 ways, for example, as 1887876 + 40182921 = 1374^2 + 6339^2 .

It is not a de Polignac number, because 42070797 - 2¹⁸ = 41808653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42070747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56638 + ... + 57375.

It is an arithmetic number, because the mean of its divisors is an integer number (5187637).

Almost surely, 2^42070797 is an apocalyptic number.

It is an amenable number.

42070797 is a deficient number, since it is larger than the sum of its proper divisors (20180847).

42070797 is a wasteful number, since it uses less digits than its factorization.

42070797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114060 (or 114057 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 42070797 is about 6486.2005056890. The cubic root of 42070797 is about 347.7978661658.

It can be divided in two parts, 420 and 70797, that added together give a palindrome (71217).

The spelling of 42070797 in words is "forty-two million, seventy thousand, seven hundred ninety-seven".