90280763 has 2 divisors, whose sum is σ = 90280764. Its totient is φ = 90280762.

The previous prime is 90280753. The next prime is 90280787. The reversal of 90280763 is 36708209.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90280763 - 2⁴ = 90280747 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (90280753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45140381 + 45140382.

It is an arithmetic number, because the mean of its divisors is an integer number (45140382).

Almost surely, 2^90280763 is an apocalyptic number.

90280763 is a deficient number, since it is larger than the sum of its proper divisors (1).

90280763 is an equidigital number, since it uses as much as digits as its factorization.

90280763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 90280763 is about 9501.6189673129. The cubic root of 90280763 is about 448.6059955946.

The spelling of 90280763 in words is "ninety million, two hundred eighty thousand, seven hundred sixty-three".