42993803 has 2 divisors, whose sum is σ = 42993804. Its totient is φ = 42993802.

The previous prime is 42993791. The next prime is 42993829. The reversal of 42993803 is 30839924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42993803 - 2²⁴ = 26216587 is a prime.

It is not a weakly prime, because it can be changed into another prime (42993893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21496901 + 21496902.

It is an arithmetic number, because the mean of its divisors is an integer number (21496902).

Almost surely, 2^42993803 is an apocalyptic number.

42993803 is a deficient number, since it is larger than the sum of its proper divisors (1).

42993803 is an equidigital number, since it uses as much as digits as its factorization.

42993803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 42993803 is about 6556.9659904563. The cubic root of 42993803 is about 350.3229753404.

The spelling of 42993803 in words is "forty-two million, nine hundred ninety-three thousand, eight hundred three".