90594443 has 2 divisors, whose sum is σ = 90594444. Its totient is φ = 90594442.

The previous prime is 90594409. The next prime is 90594481. The reversal of 90594443 is 34449509.

It is an a-pointer prime, because the next prime (90594481) can be obtained adding 90594443 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90594443 - 2⁸ = 90594187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90594397 and 90594406.

It is not a weakly prime, because it can be changed into another prime (90594043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45297221 + 45297222.

It is an arithmetic number, because the mean of its divisors is an integer number (45297222).

Almost surely, 2^90594443 is an apocalyptic number.

90594443 is a deficient number, since it is larger than the sum of its proper divisors (1).

90594443 is an equidigital number, since it uses as much as digits as its factorization.

90594443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 90594443 is about 9518.1113147515. Note that the first 3 decimals coincide. The cubic root of 90594443 is about 449.1249546818.

The spelling of 90594443 in words is "ninety million, five hundred ninety-four thousand, four hundred forty-three".