979651 has 2 divisors, whose sum is σ = 979652. Its totient is φ = 979650.

The previous prime is 979567. The next prime is 979691. The reversal of 979651 is 156979.

It is a strong prime.

It is an emirp because it is prime and its reverse (156979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 979651 - 2¹⁷ = 848579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 979651.

It is not a weakly prime, because it can be changed into another prime (979691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489825 + 489826.

It is an arithmetic number, because the mean of its divisors is an integer number (489826).

2⁹⁷⁹⁶⁵¹ is an apocalyptic number.

979651 is a deficient number, since it is larger than the sum of its proper divisors (1).

979651 is an equidigital number, since it uses as much as digits as its factorization.

979651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 37.

The square root of 979651 is about 989.7732063458. The cubic root of 979651 is about 99.3170463615.

The spelling of 979651 in words is "nine hundred seventy-nine thousand, six hundred fifty-one".