1682989078 has 4 divisors (see below), whose sum is σ = 2524483620. Its totient is φ = 841494538.

The previous prime is 1682989027. The next prime is 1682989111. The reversal of 1682989078 is 8709892861.

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, 420747268 + ... + 420747271.

It is an arithmetic number, because the mean of its divisors is an integer number (631120905).

Almost surely, 2^1682989078 is an apocalyptic number.

1682989078 is a deficient number, since it is larger than the sum of its proper divisors (841494542).

1682989078 is an equidigital number, since it uses as much as digits as its factorization.

1682989078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841494541.

The product of its (nonzero) digits is 3483648, while the sum is 58.

The square root of 1682989078 is about 41024.2498773591. The cubic root of 1682989078 is about 1189.4890064155.

The spelling of 1682989078 in words is "one billion, six hundred eighty-two million, nine hundred eighty-nine thousand, seventy-eight".