347978433 has 8 divisors (see below), whose sum is σ = 506150496. Its totient is φ = 210896000.

The previous prime is 347978429. The next prime is 347978437. The reversal of 347978433 is 334879743.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (347978429) and next prime (347978437).

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

It is a cyclic number.

It is not a de Polignac number, because 347978433 - 2² = 347978429 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (347978437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5272368 + ... + 5272433.

It is an arithmetic number, because the mean of its divisors is an integer number (63268812).

Almost surely, 2^347978433 is an apocalyptic number.

347978433 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

347978433 is a deficient number, since it is larger than the sum of its proper divisors (158172063).

347978433 is a wasteful number, since it uses less digits than its factorization.

347978433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10544815.

The product of its digits is 1524096, while the sum is 48.

The square root of 347978433 is about 18654.1800409452. The cubic root of 347978433 is about 703.3704347406.

The spelling of 347978433 in words is "three hundred forty-seven million, nine hundred seventy-eight thousand, four hundred thirty-three".