3497631866 has 4 divisors (see below), whose sum is σ = 5246447802. Its totient is φ = 1748815932.

The previous prime is 3497631857. The next prime is 3497631871. The reversal of 3497631866 is 6681367943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6681367943 = 26729 ⋅249967.

It can be written as a sum of positive squares in only one way, i.e., 2455698025 + 1041933841 = 49555^2 + 32279^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 874407965 + ... + 874407968.

Almost surely, 2^3497631866 is an apocalyptic number.

3497631866 is a deficient number, since it is larger than the sum of its proper divisors (1748815936).

3497631866 is a wasteful number, since it uses less digits than its factorization.

3497631866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748815935.

The product of its digits is 3919104, while the sum is 53.

The square root of 3497631866 is about 59140.7800591098. The cubic root of 3497631866 is about 1517.9519777453.

The spelling of 3497631866 in words is "three billion, four hundred ninety-seven million, six hundred thirty-one thousand, eight hundred sixty-six".