352029989 has 2 divisors, whose sum is σ = 352029990. Its totient is φ = 352029988.

The previous prime is 352029983. The next prime is 352030009. The reversal of 352029989 is 989920253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309232225 + 42797764 = 17585^2 + 6542^2 .

It is a cyclic number.

It is not a de Polignac number, because 352029989 - 2¹² = 352025893 is a prime.

It is a super-2 number, since 2×352029989² = 247850226310680242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (352029983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176014994 + 176014995.

It is an arithmetic number, because the mean of its divisors is an integer number (176014995).

Almost surely, 2^352029989 is an apocalyptic number.

It is an amenable number.

352029989 is a deficient number, since it is larger than the sum of its proper divisors (1).

352029989 is an equidigital number, since it uses as much as digits as its factorization.

352029989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 352029989 is about 18762.4622318074. The cubic root of 352029989 is about 706.0897179383.

The spelling of 352029989 in words is "three hundred fifty-two million, twenty-nine thousand, nine hundred eighty-nine".