349216497 has 12 divisors (see below), whose sum is σ = 576484480. Its totient is φ = 199552248.

The previous prime is 349216493. The next prime is 349216501. The reversal of 349216497 is 794612943.

It is a happy number.

349216497 is a `hidden beast` number, since 349 + 216 + 4 + 97 = 666.

It is an interprime number because it is at equal distance from previous prime (349216493) and next prime (349216501).

It is not a de Polignac number, because 349216497 - 2² = 349216493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349216493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2771497 + ... + 2771622.

Almost surely, 2^349216497 is an apocalyptic number.

It is an amenable number.

349216497 is a deficient number, since it is larger than the sum of its proper divisors (227267983).

349216497 is a wasteful number, since it uses less digits than its factorization.

349216497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5543132 (or 5543129 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 349216497 is about 18687.3352032867. The cubic root of 349216497 is about 704.2036155878.

The spelling of 349216497 in words is "three hundred forty-nine million, two hundred sixteen thousand, four hundred ninety-seven".