349476993 has 12 divisors (see below), whose sum is σ = 506666368. Its totient is φ = 232123320.

The previous prime is 349476977. The next prime is 349477027. The reversal of 349476993 is 399674943.

349476993 is a `hidden beast` number, since 3 + 494 + 7 + 69 + 93 = 666.

It is not a de Polignac number, because 349476993 - 2⁴ = 349476977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (349476943) 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 11 ways as a sum of consecutive naturals, for example, 69205 + ... + 74082.

Almost surely, 2^349476993 is an apocalyptic number.

It is an amenable number.

349476993 is a deficient number, since it is larger than the sum of its proper divisors (157189375).

349476993 is a wasteful number, since it uses less digits than its factorization.

349476993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143564 (or 143561 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 54.

The square root of 349476993 is about 18694.3037580970. The cubic root of 349476993 is about 704.3786709216.

The spelling of 349476993 in words is "three hundred forty-nine million, four hundred seventy-six thousand, nine hundred ninety-three".