680279501 has 4 divisors (see below), whose sum is σ = 742123104. Its totient is φ = 618435900.

The previous prime is 680279473. The next prime is 680279581. The reversal of 680279501 is 105972086.

680279501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 680279501 - 2²² = 676085197 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 (680279581) 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, 30921785 + ... + 30921806.

It is an arithmetic number, because the mean of its divisors is an integer number (185530776).

Almost surely, 2^680279501 is an apocalyptic number.

It is an amenable number.

680279501 is a deficient number, since it is larger than the sum of its proper divisors (61843603).

680279501 is a wasteful number, since it uses less digits than its factorization.

680279501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61843602.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 680279501 is about 26082.1682572596. The cubic root of 680279501 is about 879.4864001134.

The spelling of 680279501 in words is "six hundred eighty million, two hundred seventy-nine thousand, five hundred one".