40066903 has 2 divisors, whose sum is σ = 40066904. Its totient is φ = 40066902.

The previous prime is 40066861. The next prime is 40066919. The reversal of 40066903 is 30966004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40066903 is a prime.

It is a super-2 number, since 2×40066903² = 3210713432022818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40006903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20033451 + 20033452.

It is an arithmetic number, because the mean of its divisors is an integer number (20033452).

Almost surely, 2^40066903 is an apocalyptic number.

40066903 is a deficient number, since it is larger than the sum of its proper divisors (1).

40066903 is an equidigital number, since it uses as much as digits as its factorization.

40066903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 40066903 is about 6329.8422571183. The cubic root of 40066903 is about 342.1857539982.

The spelling of 40066903 in words is "forty million, sixty-six thousand, nine hundred three".