346528889 has 16 divisors (see below), whose sum is σ = 403904640. Its totient is φ = 291150720.

The previous prime is 346528877. The next prime is 346528921. The reversal of 346528889 is 988825643.

It is not a de Polignac number, because 346528889 - 2¹⁶ = 346463353 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 346528889.

It is not an unprimeable number, because it can be changed into a prime (346528829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172877 + ... + 174869.

It is an arithmetic number, because the mean of its divisors is an integer number (25244040).

Almost surely, 2^346528889 is an apocalyptic number.

It is an amenable number.

346528889 is a deficient number, since it is larger than the sum of its proper divisors (57375751).

346528889 is a wasteful number, since it uses less digits than its factorization.

346528889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480.

The product of its digits is 3317760, while the sum is 53.

The square root of 346528889 is about 18615.2864334664. The cubic root of 346528889 is about 702.3924187786.

The spelling of 346528889 in words is "three hundred forty-six million, five hundred twenty-eight thousand, eight hundred eighty-nine".