90812003 has 2 divisors, whose sum is σ = 90812004. Its totient is φ = 90812002.

The previous prime is 90811999. The next prime is 90812009. The reversal of 90812003 is 30021809.

It is a weak prime.

It is an emirp because it is prime and its reverse (30021809) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90812003 - 2² = 90811999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90812003.

It is not a weakly prime, because it can be changed into another prime (90812009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45406001 + 45406002.

It is an arithmetic number, because the mean of its divisors is an integer number (45406002).

Almost surely, 2^90812003 is an apocalyptic number.

90812003 is a deficient number, since it is larger than the sum of its proper divisors (1).

90812003 is an equidigital number, since it uses as much as digits as its factorization.

90812003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 90812003 is about 9529.5331994804. The cubic root of 90812003 is about 449.4841875768.

The spelling of 90812003 in words is "ninety million, eight hundred twelve thousand, three".