42800903 has 2 divisors, whose sum is σ = 42800904. Its totient is φ = 42800902.

The previous prime is 42800893. The next prime is 42800909. The reversal of 42800903 is 30900824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42800903 - 2⁴ = 42800887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42800909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21400451 + 21400452.

It is an arithmetic number, because the mean of its divisors is an integer number (21400452).

Almost surely, 2^42800903 is an apocalyptic number.

42800903 is a deficient number, since it is larger than the sum of its proper divisors (1).

42800903 is an equidigital number, since it uses as much as digits as its factorization.

42800903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 42800903 is about 6542.2399069432. The cubic root of 42800903 is about 349.7982592487.

The spelling of 42800903 in words is "forty-two million, eight hundred thousand, nine hundred three".