90446903 has 2 divisors, whose sum is σ = 90446904. Its totient is φ = 90446902.

The previous prime is 90446849. The next prime is 90446929. The reversal of 90446903 is 30964409.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90446903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90446803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45223451 + 45223452.

It is an arithmetic number, because the mean of its divisors is an integer number (45223452).

Almost surely, 2^90446903 is an apocalyptic number.

90446903 is the 5084-th centered heptagonal number.

90446903 is a deficient number, since it is larger than the sum of its proper divisors (1).

90446903 is an equidigital number, since it uses as much as digits as its factorization.

90446903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 90446903 is about 9510.3576694044. The cubic root of 90446903 is about 448.8810107262.

The spelling of 90446903 in words is "ninety million, four hundred forty-six thousand, nine hundred three".