1682809694 has 4 divisors (see below), whose sum is σ = 2524214544. Its totient is φ = 841404846.

The previous prime is 1682809693. The next prime is 1682809703. The reversal of 1682809694 is 4969082861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4969082861 = 337 ⋅14745053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1682809693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420702422 + ... + 420702425.

It is an arithmetic number, because the mean of its divisors is an integer number (631053636).

Almost surely, 2^1682809694 is an apocalyptic number.

1682809694 is a deficient number, since it is larger than the sum of its proper divisors (841404850).

1682809694 is an equidigital number, since it uses as much as digits as its factorization.

1682809694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841404849.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 1682809694 is about 41022.0635024617. The cubic root of 1682809694 is about 1189.4467437373.

The spelling of 1682809694 in words is "one billion, six hundred eighty-two million, eight hundred nine thousand, six hundred ninety-four".