90473833 has 2 divisors, whose sum is σ = 90473834. Its totient is φ = 90473832.

The previous prime is 90473827. The next prime is 90473837. The reversal of 90473833 is 33837409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90098064 + 375769 = 9492^2 + 613^2 .

It is an emirp because it is prime and its reverse (33837409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90473833 - 2²¹ = 88376681 is a prime.

It is a super-3 number, since 3×90473833³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90473792 and 90473801.

It is not a weakly prime, because it can be changed into another prime (90473837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45236916 + 45236917.

It is an arithmetic number, because the mean of its divisors is an integer number (45236917).

Almost surely, 2^90473833 is an apocalyptic number.

It is an amenable number.

90473833 is a deficient number, since it is larger than the sum of its proper divisors (1).

90473833 is an equidigital number, since it uses as much as digits as its factorization.

90473833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 90473833 is about 9511.7733888061. The cubic root of 90473833 is about 448.9255568104.

It can be divided in two parts, 9047 and 3833, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 90473833 in words is "ninety million, four hundred seventy-three thousand, eight hundred thirty-three".