978748 has 6 divisors (see below), whose sum is σ = 1712816. Its totient is φ = 489372.

The previous prime is 978743. The next prime is 978749. The reversal of 978748 is 847879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978743) by changing a digit.

978748 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122340 + ... + 122347.

2⁹⁷⁸⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

978748 is a deficient number, since it is larger than the sum of its proper divisors (734068).

978748 is a wasteful number, since it uses less digits than its factorization.

978748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244691 (or 244689 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 978748 is about 989.3169360726. The cubic root of 978748 is about 99.2865215922.

The spelling of 978748 in words is "nine hundred seventy-eight thousand, seven hundred forty-eight".