979650769 has 4 divisors (see below), whose sum is σ = 1013431860. Its totient is φ = 945869680.

The previous prime is 979650731. The next prime is 979650803. The reversal of 979650769 is 967056979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 967056979 = 7 ⋅138150997.

It can be written as a sum of positive squares in 2 ways, for example, as 541167169 + 438483600 = 23263^2 + 20940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-979650769 is a prime.

It is a super-2 number, since 2×979650769² = 1919431258404582722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979650719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16890502 + ... + 16890559.

It is an arithmetic number, because the mean of its divisors is an integer number (253357965).

Almost surely, 2^979650769 is an apocalyptic number.

It is an amenable number.

979650769 is a deficient number, since it is larger than the sum of its proper divisors (33781091).

979650769 is a wasteful number, since it uses less digits than its factorization.

979650769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33781090.

The product of its (nonzero) digits is 6429780, while the sum is 58.

The square root of 979650769 is about 31299.3733004353. The cubic root of 979650769 is about 993.1703855525.

The spelling of 979650769 in words is "nine hundred seventy-nine million, six hundred fifty thousand, seven hundred sixty-nine".