978951 has 8 divisors (see below), whose sum is σ = 1313280. Its totient is φ = 648632.

The previous prime is 978947. The next prime is 978973. The reversal of 978951 is 159879.

It is a happy number.

978951 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 978951 - 2² = 978947 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 978951.

It is not an unprimeable number, because it can be changed into a prime (978931) 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, 375 + ... + 1448.

It is an arithmetic number, because the mean of its divisors is an integer number (164160).

2⁹⁷⁸⁹⁵¹ is an apocalyptic number.

978951 is a deficient number, since it is larger than the sum of its proper divisors (334329).

978951 is a wasteful number, since it uses less digits than its factorization.

978951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005.

The product of its digits is 22680, while the sum is 39.

The square root of 978951 is about 989.4195267934. The cubic root of 978951 is about 99.2933853850.

The spelling of 978951 in words is "nine hundred seventy-eight thousand, nine hundred fifty-one".