349869553 has 16 divisors (see below), whose sum is σ = 402969600. Its totient is φ = 300419280.

The previous prime is 349869547. The next prime is 349869593. The reversal of 349869553 is 355968943.

It is a cyclic number.

It is not a de Polignac number, because 349869553 - 2²¹ = 347772401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349869553.

It is not an unprimeable number, because it can be changed into a prime (349869593) 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, 72700 + ... + 77362.

It is an arithmetic number, because the mean of its divisors is an integer number (25185600).

Almost surely, 2^349869553 is an apocalyptic number.

It is an amenable number.

349869553 is a deficient number, since it is larger than the sum of its proper divisors (53100047).

349869553 is a wasteful number, since it uses less digits than its factorization.

349869553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052.

The product of its digits is 3499200, while the sum is 52.

The square root of 349869553 is about 18704.8002662418. The cubic root of 349869553 is about 704.6423100436.

The spelling of 349869553 in words is "three hundred forty-nine million, eight hundred sixty-nine thousand, five hundred fifty-three".