1682749651 has 8 divisors (see below), whose sum is σ = 1836047808. Its totient is φ = 1529505000.

The previous prime is 1682749631. The next prime is 1682749669. The reversal of 1682749651 is 1569472861.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1682749651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1682749595 and 1682749604.

It is not an unprimeable number, because it can be changed into a prime (1682749631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81976 + ... + 100426.

It is an arithmetic number, because the mean of its divisors is an integer number (229505976).

Almost surely, 2^1682749651 is an apocalyptic number.

1682749651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1682749651 is a deficient number, since it is larger than the sum of its proper divisors (153298157).

1682749651 is a wasteful number, since it uses less digits than its factorization.

1682749651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26753.

The product of its digits is 725760, while the sum is 49.

The square root of 1682749651 is about 41021.3316580532. The cubic root of 1682749651 is about 1189.4325969999.

The spelling of 1682749651 in words is "one billion, six hundred eighty-two million, seven hundred forty-nine thousand, six hundred fifty-one".