90247741 has 2 divisors, whose sum is σ = 90247742. Its totient is φ = 90247740.

The previous prime is 90247687. The next prime is 90247753. The reversal of 90247741 is 14774209.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77070841 + 13176900 = 8779^2 + 3630^2 .

It is an emirp because it is prime and its reverse (14774209) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90247741 - 2⁹ = 90247229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90247697 and 90247706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90247771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45123870 + 45123871.

It is an arithmetic number, because the mean of its divisors is an integer number (45123871).

Almost surely, 2^90247741 is an apocalyptic number.

It is an amenable number.

90247741 is a deficient number, since it is larger than the sum of its proper divisors (1).

90247741 is an equidigital number, since it uses as much as digits as its factorization.

90247741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 90247741 is about 9499.8811045192. The cubic root of 90247741 is about 448.5512933774.

The spelling of 90247741 in words is "ninety million, two hundred forty-seven thousand, seven hundred forty-one".