979074649 has 16 divisors (see below), whose sum is σ = 1199155968. Its totient is φ = 781019712.

The previous prime is 979074647. The next prime is 979074661. The reversal of 979074649 is 946470979.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 979074649 - 2¹ = 979074647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 979074649.

It is not an unprimeable number, because it can be changed into a prime (979074647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76222 + ... + 88135.

It is an arithmetic number, because the mean of its divisors is an integer number (74947248).

Almost surely, 2^979074649 is an apocalyptic number.

It is an amenable number.

979074649 is a deficient number, since it is larger than the sum of its proper divisors (220081319).

979074649 is a wasteful number, since it uses less digits than its factorization.

979074649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164424.

The product of its (nonzero) digits is 3429216, while the sum is 55.

The square root of 979074649 is about 31290.1685677786. The cubic root of 979074649 is about 992.9756571376.

The spelling of 979074649 in words is "nine hundred seventy-nine million, seventy-four thousand, six hundred forty-nine".