972878 has 8 divisors (see below), whose sum is σ = 1498872. Its totient is φ = 473256.

The previous prime is 972869. The next prime is 972887. The reversal of 972878 is 878279.

It is an interprime number because it is at equal distance from previous prime (972869) and next prime (972887).

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

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 972878.

It is an unprimeable number.

972878 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6500 + ... + 6647.

It is an arithmetic number, because the mean of its divisors is an integer number (187359).

2⁹⁷²⁸⁷⁸ is an apocalyptic number.

972878 is a deficient number, since it is larger than the sum of its proper divisors (525994).

972878 is a wasteful number, since it uses less digits than its factorization.

972878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13186.

The product of its digits is 56448, while the sum is 41.

The square root of 972878 is about 986.3457811539. The cubic root of 972878 is about 99.0876345415.

The spelling of 972878 in words is "nine hundred seventy-two thousand, eight hundred seventy-eight".