1679965723 has 8 divisors (see below), whose sum is σ = 1725974288. Its totient is φ = 1633989024.

The previous prime is 1679965669. The next prime is 1679965759. The reversal of 1679965723 is 3275699761.

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

It is a cyclic number.

It is not a de Polignac number, because 1679965723 - 2²¹ = 1677868571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1679965523) 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, 132040 + ... + 144202.

It is an arithmetic number, because the mean of its divisors is an integer number (215746786).

Almost surely, 2^1679965723 is an apocalyptic number.

1679965723 is a deficient number, since it is larger than the sum of its proper divisors (46008565).

1679965723 is a wasteful number, since it uses less digits than its factorization.

1679965723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15933.

The product of its digits is 4286520, while the sum is 55.

The square root of 1679965723 is about 40987.3849251206. The cubic root of 1679965723 is about 1188.7763055844.

The spelling of 1679965723 in words is "one billion, six hundred seventy-nine million, nine hundred sixty-five thousand, seven hundred twenty-three".