90040003 has 2 divisors, whose sum is σ = 90040004. Its totient is φ = 90040002.

The previous prime is 90039991. The next prime is 90040037. The reversal of 90040003 is 30004009.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90040003 is a prime.

It is not a weakly prime, because it can be changed into another prime (90040403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45020001 + 45020002.

It is an arithmetic number, because the mean of its divisors is an integer number (45020002).

Almost surely, 2^90040003 is an apocalyptic number.

90040003 is a deficient number, since it is larger than the sum of its proper divisors (1).

90040003 is an equidigital number, since it uses as much as digits as its factorization.

90040003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 90040003 is about 9488.9410894999. The cubic root of 90040003 is about 448.2068609817.

The spelling of 90040003 in words is "ninety million, forty thousand, three".