345543887 has 24 divisors (see below), whose sum is σ = 407384208. Its totient is φ = 290338560.

The previous prime is 345543883. The next prime is 345543901. The reversal of 345543887 is 788345543.

It is not a de Polignac number, because 345543887 - 2² = 345543883 is a prime.

It is a super-3 number, since 3×345543887³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345543883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211568 + ... + 213194.

It is an arithmetic number, because the mean of its divisors is an integer number (16974342).

Almost surely, 2^345543887 is an apocalyptic number.

345543887 is a deficient number, since it is larger than the sum of its proper divisors (61840321).

345543887 is a wasteful number, since it uses less digits than its factorization.

345543887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719 (or 1688 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 47.

The square root of 345543887 is about 18588.8108011244. The cubic root of 345543887 is about 701.7262746970.

The spelling of 345543887 in words is "three hundred forty-five million, five hundred forty-three thousand, eight hundred eighty-seven".