352747889 has 4 divisors (see below), whose sum is σ = 379882356. Its totient is φ = 325613424.

The previous prime is 352747861. The next prime is 352747891. The reversal of 352747889 is 988747253.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42706225 + 310041664 = 6535^2 + 17608^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-352747889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 352747889.

It is not an unprimeable number, because it can be changed into a prime (352747859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13567214 + ... + 13567239.

It is an arithmetic number, because the mean of its divisors is an integer number (94970589).

Almost surely, 2^352747889 is an apocalyptic number.

It is an amenable number.

352747889 is a deficient number, since it is larger than the sum of its proper divisors (27134467).

352747889 is a wasteful number, since it uses less digits than its factorization.

352747889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27134466.

The product of its digits is 3386880, while the sum is 53.

The square root of 352747889 is about 18781.5837724085. The cubic root of 352747889 is about 706.5693717904.

The spelling of 352747889 in words is "three hundred fifty-two million, seven hundred forty-seven thousand, eight hundred eighty-nine".