332668729 has 2 divisors, whose sum is σ = 332668730. Its totient is φ = 332668728.

The previous prime is 332668697. The next prime is 332668747. The reversal of 332668729 is 927866233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182655225 + 150013504 = 13515^2 + 12248^2 .

It is a cyclic number.

It is not a de Polignac number, because 332668729 - 2⁵ = 332668697 is a prime.

It is a super-4 number, since 4×332668729⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (332668129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166334364 + 166334365.

It is an arithmetic number, because the mean of its divisors is an integer number (166334365).

Almost surely, 2^332668729 is an apocalyptic number.

It is an amenable number.

332668729 is a deficient number, since it is larger than the sum of its proper divisors (1).

332668729 is an equidigital number, since it uses as much as digits as its factorization.

332668729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 46.

The square root of 332668729 is about 18239.2085628736. The cubic root of 332668729 is about 692.9001568465.

The spelling of 332668729 in words is "three hundred thirty-two million, six hundred sixty-eight thousand, seven hundred twenty-nine".