978089311 has 8 divisors (see below), whose sum is σ = 995900048. Its totient is φ = 960336000.

The previous prime is 978089303. The next prime is 978089323. The reversal of 978089311 is 113980879.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 978089311 - 2³ = 978089303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978086311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20791 + ... + 48871.

It is an arithmetic number, because the mean of its divisors is an integer number (124487506).

Almost surely, 2^978089311 is an apocalyptic number.

978089311 is a deficient number, since it is larger than the sum of its proper divisors (17810737).

978089311 is a wasteful number, since it uses less digits than its factorization.

978089311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28713.

The product of its (nonzero) digits is 108864, while the sum is 46.

The square root of 978089311 is about 31274.4194350591. The cubic root of 978089311 is about 992.6424360164.

The spelling of 978089311 in words is "nine hundred seventy-eight million, eighty-nine thousand, three hundred eleven".