349777975 has 24 divisors (see below), whose sum is σ = 461876688. Its totient is φ = 261849600.

The previous prime is 349777957. The next prime is 349777979. The reversal of 349777975 is 579777943.

It is not a de Polignac number, because 349777975 - 2⁵ = 349777943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349777979) 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, 74652 + ... + 79198.

It is an arithmetic number, because the mean of its divisors is an integer number (19244862).

Almost surely, 2^349777975 is an apocalyptic number.

349777975 is a deficient number, since it is larger than the sum of its proper divisors (112098713).

349777975 is a wasteful number, since it uses less digits than its factorization.

349777975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755 (or 4750 counting only the distinct ones).

The product of its digits is 11668860, while the sum is 58.

The square root of 349777975 is about 18702.3521247997. The cubic root of 349777975 is about 704.5808248758.

The spelling of 349777975 in words is "three hundred forty-nine million, seven hundred seventy-seven thousand, nine hundred seventy-five".