978513995 has 8 divisors (see below), whose sum is σ = 1202856480. Its totient is φ = 763718080.

The previous prime is 978513979. The next prime is 978514013. The reversal of 978513995 is 599315879.

978513995 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 not a de Polignac number, because 978513995 - 2⁴ = 978513979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 978513995.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2386415 + ... + 2386824.

It is an arithmetic number, because the mean of its divisors is an integer number (150357060).

Almost surely, 2^978513995 is an apocalyptic number.

978513995 is a deficient number, since it is larger than the sum of its proper divisors (224342485).

978513995 is a wasteful number, since it uses less digits than its factorization.

978513995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773285.

The product of its digits is 3061800, while the sum is 56.

The square root of 978513995 is about 31281.2083366356. The cubic root of 978513995 is about 992.7860828719.

The spelling of 978513995 in words is "nine hundred seventy-eight million, five hundred thirteen thousand, nine hundred ninety-five".