347478086 has 4 divisors (see below), whose sum is σ = 521217132. Its totient is φ = 173739042.

The previous prime is 347478083. The next prime is 347478091. The reversal of 347478086 is 680874743.

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

It is a self number, because there is not a number n which added to its sum of digits gives 347478086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347478083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86869520 + ... + 86869523.

It is an arithmetic number, because the mean of its divisors is an integer number (130304283).

Almost surely, 2^347478086 is an apocalyptic number.

347478086 is a deficient number, since it is larger than the sum of its proper divisors (173739046).

347478086 is a wasteful number, since it uses less digits than its factorization.

347478086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173739045.

The product of its (nonzero) digits is 903168, while the sum is 47.

The square root of 347478086 is about 18640.7640937811. The cubic root of 347478086 is about 703.0331551237.

The spelling of 347478086 in words is "three hundred forty-seven million, four hundred seventy-eight thousand, eighty-six".