1689464366 has 4 divisors (see below), whose sum is σ = 2534196552. Its totient is φ = 844732182.

The previous prime is 1689464353. The next prime is 1689464377. The reversal of 1689464366 is 6634649861.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422366090 + ... + 422366093.

It is an arithmetic number, because the mean of its divisors is an integer number (633549138).

Almost surely, 2^1689464366 is an apocalyptic number.

1689464366 is a deficient number, since it is larger than the sum of its proper divisors (844732186).

1689464366 is an equidigital number, since it uses as much as digits as its factorization.

1689464366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844732185.

The product of its digits is 4478976, while the sum is 53.

The square root of 1689464366 is about 41103.0943604007. The cubic root of 1689464366 is about 1191.0125708264.

The spelling of 1689464366 in words is "one billion, six hundred eighty-nine million, four hundred sixty-four thousand, three hundred sixty-six".