978464 has 12 divisors (see below), whose sum is σ = 1926414. Its totient is φ = 489216.

The previous prime is 978463. The next prime is 978473. The reversal of 978464 is 464879.

It is a happy number.

978464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 883600 + 94864 = 940^2 + 308^2 .

It is a d-powerful number, because it can be written as 9⁵ + 7⁷ + 4³ + 8⁵ + 6⁶ + 4⁷ .

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 978464.

It is not an unprimeable number, because it can be changed into a prime (978463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15257 + ... + 15320.

2⁹⁷⁸⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

978464 is a deficient number, since it is larger than the sum of its proper divisors (947950).

978464 is a wasteful number, since it uses less digits than its factorization.

978464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30587 (or 30579 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 978464 is about 989.1733922827. The cubic root of 978464 is about 99.2769174517.

The spelling of 978464 in words is "nine hundred seventy-eight thousand, four hundred sixty-four".