978196877 has 8 divisors (see below), whose sum is σ = 1166545536. Its totient is φ = 801999792.

The previous prime is 978196829. The next prime is 978196903. The reversal of 978196877 is 778691879.

978196877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 978196877 - 2⁸ = 978196621 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 (978192877) 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, 3037718 + ... + 3038039.

It is an arithmetic number, because the mean of its divisors is an integer number (145818192).

Almost surely, 2^978196877 is an apocalyptic number.

It is an amenable number.

978196877 is a deficient number, since it is larger than the sum of its proper divisors (188348659).

978196877 is a wasteful number, since it uses less digits than its factorization.

978196877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075787.

The product of its digits is 10668672, while the sum is 62.

The square root of 978196877 is about 31276.1390999593. The cubic root of 978196877 is about 992.6788235123.

The spelling of 978196877 in words is "nine hundred seventy-eight million, one hundred ninety-six thousand, eight hundred seventy-seven".