679571961 has 8 divisors (see below), whose sum is σ = 945491520. Its totient is φ = 433350192.

The previous prime is 679571951. The next prime is 679571969. The reversal of 679571961 is 169175976.

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

It is not a de Polignac number, because 679571961 - 2⁵ = 679571929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (679571969) 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, 4924366 + ... + 4924503.

It is an arithmetic number, because the mean of its divisors is an integer number (118186440).

Almost surely, 2^679571961 is an apocalyptic number.

It is an amenable number.

679571961 is a deficient number, since it is larger than the sum of its proper divisors (265919559).

679571961 is a wasteful number, since it uses less digits than its factorization.

679571961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9848895.

The product of its digits is 714420, while the sum is 51.

The square root of 679571961 is about 26068.6010556762. The cubic root of 679571961 is about 879.1813844704.

The spelling of 679571961 in words is "six hundred seventy-nine million, five hundred seventy-one thousand, nine hundred sixty-one".