42671803 has 4 divisors (see below), whose sum is σ = 42688728. Its totient is φ = 42654880.

The previous prime is 42671753. The next prime is 42671807. The reversal of 42671803 is 30817624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42671803 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42671807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3838 + ... + 10003.

It is an arithmetic number, because the mean of its divisors is an integer number (10672182).

Almost surely, 2^42671803 is an apocalyptic number.

42671803 is a deficient number, since it is larger than the sum of its proper divisors (16925).

42671803 is a wasteful number, since it uses less digits than its factorization.

42671803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16924.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 42671803 is about 6532.3658042091. The cubic root of 42671803 is about 349.4462072083.

The spelling of 42671803 in words is "forty-two million, six hundred seventy-one thousand, eight hundred three".