906978 has 8 divisors (see below), whose sum is σ = 1813968. Its totient is φ = 302324.

The previous prime is 906973. The next prime is 907019. The reversal of 906978 is 879609.

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

906978 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 906978.

It is not an unprimeable number, because it can be changed into a prime (906973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75576 + ... + 75587.

It is an arithmetic number, because the mean of its divisors is an integer number (226746).

2⁹⁰⁶⁹⁷⁸ is an apocalyptic number.

906978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

906978 is a wasteful number, since it uses less digits than its factorization.

906978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151168.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 906978 is about 952.3539258070. The cubic root of 906978 is about 96.7978217072.

The spelling of 906978 in words is "nine hundred six thousand, nine hundred seventy-eight".