1679999973 has 8 divisors (see below), whose sum is σ = 2241751008. Its totient is φ = 1119124464.

The previous prime is 1679999947. The next prime is 1679999983. The reversal of 1679999973 is 3799999761.

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

It is a de Polignac number, because none of the positive numbers 2^k-1679999973 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1679999898 and 1679999907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679999983) 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, 214390 + ... + 222087.

It is an arithmetic number, because the mean of its divisors is an integer number (280218876).

Almost surely, 2^1679999973 is an apocalyptic number.

It is an amenable number.

1679999973 is a deficient number, since it is larger than the sum of its proper divisors (561751035).

1679999973 is a wasteful number, since it uses less digits than its factorization.

1679999973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437763.

The product of its digits is 52081218, while the sum is 69.

The square root of 1679999973 is about 40987.8027344721. The cubic root of 1679999973 is about 1188.7843841841.

The spelling of 1679999973 in words is "one billion, six hundred seventy-nine million, nine hundred ninety-nine thousand, nine hundred seventy-three".