978000013 has 8 divisors (see below), whose sum is σ = 991267200. Its totient is φ = 964755168.

The previous prime is 977999963. The next prime is 978000077. The reversal of 978000013 is 310000879.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-978000013 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 (978000083) 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, 94545 + ... + 104377.

It is an arithmetic number, because the mean of its divisors is an integer number (123908400).

Almost surely, 2^978000013 is an apocalyptic number.

It is an amenable number.

978000013 is a deficient number, since it is larger than the sum of its proper divisors (13267187).

978000013 is a wasteful number, since it uses less digits than its factorization.

978000013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11171.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 978000013 is about 31272.9917500709. The cubic root of 978000013 is about 992.6122262046.

The spelling of 978000013 in words is "nine hundred seventy-eight million, thirteen", and thus it is an aban number.