978863049 has 24 divisors (see below), whose sum is σ = 1530040512. Its totient is φ = 624198960.

The previous prime is 978863027. The next prime is 978863063. The reversal of 978863049 is 940368879.

It is not a de Polignac number, because 978863049 - 2⁹ = 978862537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 978862986 and 978863004.

It is not an unprimeable number, because it can be changed into a prime (978863089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81982 + ... + 93159.

It is an arithmetic number, because the mean of its divisors is an integer number (63751688).

Almost surely, 2^978863049 is an apocalyptic number.

It is an amenable number.

978863049 is a deficient number, since it is larger than the sum of its proper divisors (551177463).

978863049 is a wasteful number, since it uses less digits than its factorization.

978863049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175179 (or 175167 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 978863049 is about 31286.7871313115. The cubic root of 978863049 is about 992.9041172103.

The spelling of 978863049 in words is "nine hundred seventy-eight million, eight hundred sixty-three thousand, forty-nine".