347973397 has 4 divisors (see below), whose sum is σ = 348299980. Its totient is φ = 347646816.

The previous prime is 347973389. The next prime is 347973401. The reversal of 347973397 is 793379743.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 161951076 + 186022321 = 12726^2 + 13639^2 .

It is a cyclic number.

It is not a de Polignac number, because 347973397 - 2³ = 347973389 is a prime.

It is a super-3 number, since 3×347973397³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347973317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161688 + ... + 163825.

It is an arithmetic number, because the mean of its divisors is an integer number (87074995).

Almost surely, 2^347973397 is an apocalyptic number.

It is an amenable number.

347973397 is a deficient number, since it is larger than the sum of its proper divisors (326583).

347973397 is a wasteful number, since it uses less digits than its factorization.

347973397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326582.

The product of its digits is 3000564, while the sum is 52.

The square root of 347973397 is about 18654.0450573059. The cubic root of 347973397 is about 703.3670416275.

The spelling of 347973397 in words is "three hundred forty-seven million, nine hundred seventy-three thousand, three hundred ninety-seven".