679987201 has 4 divisors (see below), whose sum is σ = 701922304. Its totient is φ = 658052100.

The previous prime is 679987177. The next prime is 679987261. The reversal of 679987201 is 102789976.

It is a happy number.

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 679987201 - 2¹⁹ = 679462913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (679987261) 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, 10967505 + ... + 10967566.

It is an arithmetic number, because the mean of its divisors is an integer number (175480576).

Almost surely, 2^679987201 is an apocalyptic number.

It is an amenable number.

679987201 is a deficient number, since it is larger than the sum of its proper divisors (21935103).

679987201 is a wasteful number, since it uses less digits than its factorization.

679987201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21935102.

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 679987201 is about 26076.5642100335. The cubic root of 679987201 is about 879.3604172379.

The spelling of 679987201 in words is "six hundred seventy-nine million, nine hundred eighty-seven thousand, two hundred one".