42809097 has 8 divisors (see below), whose sum is σ = 57515040. Its totient is φ = 28321280.

The previous prime is 42809093. The next prime is 42809099. The reversal of 42809097 is 79090824.

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

It is a cyclic number.

It is not a de Polignac number, because 42809097 - 2² = 42809093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42809093) 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, 54072 + ... + 54857.

It is an arithmetic number, because the mean of its divisors is an integer number (7189380).

Almost surely, 2^42809097 is an apocalyptic number.

It is an amenable number.

42809097 is a deficient number, since it is larger than the sum of its proper divisors (14705943).

42809097 is a wasteful number, since it uses less digits than its factorization.

42809097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109063.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 42809097 is about 6542.8661150905. The cubic root of 42809097 is about 349.8205801489.

The spelling of 42809097 in words is "forty-two million, eight hundred nine thousand, ninety-seven".