978959359 has 4 divisors (see below), whose sum is σ = 1118810704. Its totient is φ = 839108016.

The previous prime is 978959257. The next prime is 978959369. The reversal of 978959359 is 953959879.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 978959359 - 2¹³ = 978951167 is a prime.

It is a super-2 number, since 2×978959359² = 1916722853147381762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 978959359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978959369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69925662 + ... + 69925675.

It is an arithmetic number, because the mean of its divisors is an integer number (279702676).

Almost surely, 2^978959359 is an apocalyptic number.

978959359 is a deficient number, since it is larger than the sum of its proper divisors (139851345).

978959359 is a wasteful number, since it uses less digits than its factorization.

978959359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139851344.

The product of its digits is 27556200, while the sum is 64.

The square root of 978959359 is about 31288.3262415873. The cubic root of 978959359 is about 992.9366799744.

The spelling of 978959359 in words is "nine hundred seventy-eight million, nine hundred fifty-nine thousand, three hundred fifty-nine".