918902749 has 2 divisors, whose sum is σ = 918902750. Its totient is φ = 918902748.

The previous prime is 918902737. The next prime is 918902753. The reversal of 918902749 is 947209819.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 820536025 + 98366724 = 28645^2 + 9918^2 .

It is a cyclic number.

It is not a de Polignac number, because 918902749 - 2¹¹ = 918900701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918902249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459451374 + 459451375.

It is an arithmetic number, because the mean of its divisors is an integer number (459451375).

Almost surely, 2^918902749 is an apocalyptic number.

It is an amenable number.

918902749 is a deficient number, since it is larger than the sum of its proper divisors (1).

918902749 is an equidigital number, since it uses as much as digits as its factorization.

918902749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 918902749 is about 30313.4087327704. The cubic root of 918902749 is about 972.2020151306.

The spelling of 918902749 in words is "nine hundred eighteen million, nine hundred two thousand, seven hundred forty-nine".