916388729 has 2 divisors, whose sum is σ = 916388730. Its totient is φ = 916388728.

The previous prime is 916388717. The next prime is 916388741. The reversal of 916388729 is 927883619.

It is a balanced prime because it is at equal distance from previous prime (916388717) and next prime (916388741).

It can be written as a sum of positive squares in only one way, i.e., 859838329 + 56550400 = 29323^2 + 7520^2 .

It is a cyclic number.

It is not a de Polignac number, because 916388729 - 2⁴ = 916388713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (916388129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458194364 + 458194365.

It is an arithmetic number, because the mean of its divisors is an integer number (458194365).

Almost surely, 2^916388729 is an apocalyptic number.

It is an amenable number.

916388729 is a deficient number, since it is larger than the sum of its proper divisors (1).

916388729 is an equidigital number, since it uses as much as digits as its factorization.

916388729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 53.

The square root of 916388729 is about 30271.9132034961. The cubic root of 916388729 is about 971.3145916351.

The spelling of 916388729 in words is "nine hundred sixteen million, three hundred eighty-eight thousand, seven hundred twenty-nine".