90350473 has 2 divisors, whose sum is σ = 90350474. Its totient is φ = 90350472.

The previous prime is 90350443. The next prime is 90350489. The reversal of 90350473 is 37405309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90022144 + 328329 = 9488^2 + 573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90350473 is a prime.

It is not a weakly prime, because it can be changed into another prime (90350423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45175236 + 45175237.

It is an arithmetic number, because the mean of its divisors is an integer number (45175237).

Almost surely, 2^90350473 is an apocalyptic number.

It is an amenable number.

90350473 is a deficient number, since it is larger than the sum of its proper divisors (1).

90350473 is an equidigital number, since it uses as much as digits as its factorization.

90350473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 90350473 is about 9505.2865816871. The cubic root of 90350473 is about 448.7214291134.

The spelling of 90350473 in words is "ninety million, three hundred fifty thousand, four hundred seventy-three".