42697929 has 8 divisors (see below), whose sum is σ = 57483712. Its totient is φ = 28188720.

The previous prime is 42697927. The next prime is 42697937. The reversal of 42697929 is 92979624.

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

It is not a de Polignac number, because 42697929 - 2¹ = 42697927 is a prime.

It is a super-2 number, since 2×42697929² = 3646226281778082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42697927) 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 7 ways as a sum of consecutive naturals, for example, 68782 + ... + 69399.

It is an arithmetic number, because the mean of its divisors is an integer number (7185464).

Almost surely, 2^42697929 is an apocalyptic number.

It is an amenable number.

42697929 is a deficient number, since it is larger than the sum of its proper divisors (14785783).

42697929 is a wasteful number, since it uses less digits than its factorization.

42697929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138287.

The product of its digits is 489888, while the sum is 48.

The square root of 42697929 is about 6534.3652331347. The cubic root of 42697929 is about 349.5175093203.

It can be divided in two parts, 42 and 697929, that added together give a triangular number (697971 = T₁₁₈₁).

The spelling of 42697929 in words is "forty-two million, six hundred ninety-seven thousand, nine hundred twenty-nine".