912978 has 64 divisors (see below), whose sum is σ = 2332800. Its totient is φ = 262080.

The previous prime is 912973. The next prime is 912979. The reversal of 912978 is 879219.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (912971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17200 + ... + 17252.

It is an arithmetic number, because the mean of its divisors is an integer number (36450).

2⁹¹²⁹⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 912978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1166400).

912978 is an abundant number, since it is smaller than the sum of its proper divisors (1419822).

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

912978 is a wasteful number, since it uses less digits than its factorization.

912978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 98 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 912978 is about 955.4988226052. The cubic root of 912978 is about 97.0108040540.

The spelling of 912978 in words is "nine hundred twelve thousand, nine hundred seventy-eight".