349894497 has 8 divisors (see below), whose sum is σ = 467798656. Its totient is φ = 232626672.

The previous prime is 349894463. The next prime is 349894507. The reversal of 349894497 is 794498943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-349894497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349894417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157798 + ... + 159999.

It is an arithmetic number, because the mean of its divisors is an integer number (58474832).

Almost surely, 2^349894497 is an apocalyptic number.

It is an amenable number.

349894497 is a deficient number, since it is larger than the sum of its proper divisors (117904159).

349894497 is a wasteful number, since it uses less digits than its factorization.

349894497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318167.

The product of its digits is 7838208, while the sum is 57.

The square root of 349894497 is about 18705.4670350676. The cubic root of 349894497 is about 704.6590555038.

The spelling of 349894497 in words is "three hundred forty-nine million, eight hundred ninety-four thousand, four hundred ninety-seven".