347408434 has 4 divisors (see below), whose sum is σ = 521112654. Its totient is φ = 173704216.

The previous prime is 347408431. The next prime is 347408437. The reversal of 347408434 is 434804743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434804743 = 29 ⋅14993267.

It is an interprime number because it is at equal distance from previous prime (347408431) and next prime (347408437).

It can be written as a sum of positive squares in only one way, i.e., 243266409 + 104142025 = 15597^2 + 10205^2 .

It is a junction number, because it is equal to n+sod(n) for n = 347408393 and 347408402.

It is not an unprimeable number, because it can be changed into a prime (347408431) 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 as a sum of consecutive naturals, namely, 86852107 + ... + 86852110.

Almost surely, 2^347408434 is an apocalyptic number.

347408434 is a deficient number, since it is larger than the sum of its proper divisors (173704220).

347408434 is a wasteful number, since it uses less digits than its factorization.

347408434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173704219.

The product of its (nonzero) digits is 129024, while the sum is 37.

The square root of 347408434 is about 18638.8957290930. The cubic root of 347408434 is about 702.9861776408.

The spelling of 347408434 in words is "three hundred forty-seven million, four hundred eight thousand, four hundred thirty-four".