979969551 has 16 divisors (see below), whose sum is σ = 1471392768. Its totient is φ = 574761600.

The previous prime is 979969541. The next prime is 979969553. The reversal of 979969551 is 155969979.

979969551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 979969551 - 2⁵ = 979969519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979969553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477946 + ... + 479991.

It is an arithmetic number, because the mean of its divisors is an integer number (91962048).

Almost surely, 2^979969551 is an apocalyptic number.

979969551 is a deficient number, since it is larger than the sum of its proper divisors (491423217).

979969551 is a wasteful number, since it uses less digits than its factorization.

979969551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957982.

The product of its digits is 6889050, while the sum is 60.

The square root of 979969551 is about 31304.4653524062. The cubic root of 979969551 is about 993.2781009808.

The spelling of 979969551 in words is "nine hundred seventy-nine million, nine hundred sixty-nine thousand, five hundred fifty-one".