1689057334 has 4 divisors (see below), whose sum is σ = 2533586004. Its totient is φ = 844528666.

The previous prime is 1689057319. The next prime is 1689057341. The reversal of 1689057334 is 4337509861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4337509861 = 8737 ⋅496453.

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, 422264332 + ... + 422264335.

It is an arithmetic number, because the mean of its divisors is an integer number (633396501).

Almost surely, 2^1689057334 is an apocalyptic number.

1689057334 is a deficient number, since it is larger than the sum of its proper divisors (844528670).

1689057334 is an equidigital number, since it uses as much as digits as its factorization.

1689057334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844528669.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 1689057334 is about 41098.1427074266. The cubic root of 1689057334 is about 1190.9169154271.

The spelling of 1689057334 in words is "one billion, six hundred eighty-nine million, fifty-seven thousand, three hundred thirty-four".