1682662861 has 4 divisors (see below), whose sum is σ = 1835632224. Its totient is φ = 1529693500.

The previous prime is 1682662841. The next prime is 1682662871.

1682662861 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1682662861 - 2¹³ = 1682654669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1682662841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76484665 + ... + 76484686.

It is an arithmetic number, because the mean of its divisors is an integer number (458908056).

Almost surely, 2^1682662861 is an apocalyptic number.

1682662861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1682662861 is a deficient number, since it is larger than the sum of its proper divisors (152969363).

1682662861 is a wasteful number, since it uses less digits than its factorization.

1682662861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152969362.

The product of its digits is 331776, while the sum is 46.

The square root of 1682662861 is about 41020.2737801688. The cubic root of 1682662861 is about 1189.4121478044.

The spelling of 1682662861 in words is "one billion, six hundred eighty-two million, six hundred sixty-two thousand, eight hundred sixty-one".