90722783 has 2 divisors, whose sum is σ = 90722784. Its totient is φ = 90722782.

The previous prime is 90722747. The next prime is 90722789. The reversal of 90722783 is 38722709.

It is a strong prime.

It is an emirp because it is prime and its reverse (38722709) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90722783 - 2¹⁸ = 90460639 is a prime.

It is a super-3 number, since 3×90722783³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90722789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45361391 + 45361392.

It is an arithmetic number, because the mean of its divisors is an integer number (45361392).

Almost surely, 2^90722783 is an apocalyptic number.

90722783 is a deficient number, since it is larger than the sum of its proper divisors (1).

90722783 is an equidigital number, since it uses as much as digits as its factorization.

90722783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 90722783 is about 9524.8508124800. The cubic root of 90722783 is about 449.3369378801.

The spelling of 90722783 in words is "ninety million, seven hundred twenty-two thousand, seven hundred eighty-three".