347866994 has 4 divisors (see below), whose sum is σ = 521800494. Its totient is φ = 173933496.

The previous prime is 347866993. The next prime is 347867053. The reversal of 347866994 is 499668743.

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

It can be written as a sum of positive squares in only one way, i.e., 250114225 + 97752769 = 15815^2 + 9887^2 .

It is a super-2 number, since 2×347866994² = 242022891029192072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (347866993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86966747 + ... + 86966750.

Almost surely, 2^347866994 is an apocalyptic number.

347866994 is a deficient number, since it is larger than the sum of its proper divisors (173933500).

347866994 is a wasteful number, since it uses less digits than its factorization.

347866994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173933499.

The product of its digits is 7838208, while the sum is 56.

The square root of 347866994 is about 18651.1928304867. The cubic root of 347866994 is about 703.2953426667.

The spelling of 347866994 in words is "three hundred forty-seven million, eight hundred sixty-six thousand, nine hundred ninety-four".