978474 has 16 divisors (see below), whose sum is σ = 2236608. Its totient is φ = 279552.

The previous prime is 978473. The next prime is 978479. The reversal of 978474 is 474879.

It is a super-2 number, since 2×978474² = 1914822737352, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 978474.

It is not an unprimeable number, because it can be changed into a prime (978473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11607 + ... + 11690.

It is an arithmetic number, because the mean of its divisors is an integer number (139788).

2⁹⁷⁸⁴⁷⁴ is an apocalyptic number.

978474 is an abundant number, since it is smaller than the sum of its proper divisors (1258134).

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

978474 is a wasteful number, since it uses less digits than its factorization.

978474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23309.

The product of its digits is 56448, while the sum is 39.

The square root of 978474 is about 989.1784469953. The cubic root of 978474 is about 99.2772556572.

It can be divided in two parts, 9 and 78474, that multiplied together give a triangular number (706266 = T₁₁₈₈).

The spelling of 978474 in words is "nine hundred seventy-eight thousand, four hundred seventy-four".