232628729 has 2 divisors, whose sum is σ = 232628730. Its totient is φ = 232628728.

The previous prime is 232628719. The next prime is 232628771. The reversal of 232628729 is 927826232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227557225 + 5071504 = 15085^2 + 2252^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232628729 is a prime.

It is a super-2 number, since 2×232628729² = 108232251112310882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (232628719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116314364 + 116314365.

It is an arithmetic number, because the mean of its divisors is an integer number (116314365).

Almost surely, 2^232628729 is an apocalyptic number.

It is an amenable number.

232628729 is a deficient number, since it is larger than the sum of its proper divisors (1).

232628729 is an equidigital number, since it uses as much as digits as its factorization.

232628729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 232628729 is about 15252.1712880494. The cubic root of 232628729 is about 615.0179376529.

The spelling of 232628729 in words is "two hundred thirty-two million, six hundred twenty-eight thousand, seven hundred twenty-nine".