42797829 has 8 divisors (see below), whose sum is σ = 57094912. Its totient is φ = 28516320.

The previous prime is 42797813. The next prime is 42797837. The reversal of 42797829 is 92879724.

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

It is not a de Polignac number, because 42797829 - 2⁴ = 42797813 is a prime.

It is a super-2 number, since 2×42797829² = 3663308334226482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42797849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6444 + ... + 11274.

It is an arithmetic number, because the mean of its divisors is an integer number (7136864).

Almost surely, 2^42797829 is an apocalyptic number.

It is an amenable number.

42797829 is a deficient number, since it is larger than the sum of its proper divisors (14297083).

42797829 is a wasteful number, since it uses less digits than its factorization.

42797829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7787.

The product of its digits is 508032, while the sum is 48.

The square root of 42797829 is about 6542.0049678978. The cubic root of 42797829 is about 349.7898847713.

The spelling of 42797829 in words is "forty-two million, seven hundred ninety-seven thousand, eight hundred twenty-nine".