42617031 has 4 divisors (see below), whose sum is σ = 56822712. Its totient is φ = 28411352.

The previous prime is 42617023. The next prime is 42617041. The reversal of 42617031 is 13071624.

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 42617031 - 2³ = 42617023 is a prime.

It is a super-2 number, since 2×42617031² = 3632422662509922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42616992 and 42617010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42617021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7102836 + ... + 7102841.

It is an arithmetic number, because the mean of its divisors is an integer number (14205678).

Almost surely, 2^42617031 is an apocalyptic number.

42617031 is a deficient number, since it is larger than the sum of its proper divisors (14205681).

42617031 is a wasteful number, since it uses less digits than its factorization.

42617031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14205680.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 42617031 is about 6528.1721025108. The cubic root of 42617031 is about 349.2966309758.

Adding to 42617031 its reverse (13071624), we get a palindrome (55688655).

The spelling of 42617031 in words is "forty-two million, six hundred seventeen thousand, thirty-one".