42709347 has 12 divisors (see below), whose sum is σ = 61765080. Its totient is φ = 28438848.

The previous prime is 42709343. The next prime is 42709349. The reversal of 42709347 is 74390724.

42709347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42709347 - 2² = 42709343 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (42709343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6843 + ... + 11499.

It is an arithmetic number, because the mean of its divisors is an integer number (5147090).

Almost surely, 2^42709347 is an apocalyptic number.

42709347 is a deficient number, since it is larger than the sum of its proper divisors (19055733).

42709347 is a wasteful number, since it uses less digits than its factorization.

42709347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5682 (or 5679 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 42709347 is about 6535.2388632704. The cubic root of 42709347 is about 349.5486617699.

The spelling of 42709347 in words is "forty-two million, seven hundred nine thousand, three hundred forty-seven".