978948459 has 24 divisors (see below), whose sum is σ = 1439113104. Its totient is φ = 641160000.

The previous prime is 978948437. The next prime is 978948463. The reversal of 978948459 is 954849879.

978948459 is a `hidden beast` number, since 97 + 8 + 94 + 8 + 459 = 666.

It is not a de Polignac number, because 978948459 - 2¹⁷ = 978817387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 978948396 and 978948405.

It is not an unprimeable number, because it can be changed into a prime (978948409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114969 + ... + 123189.

It is an arithmetic number, because the mean of its divisors is an integer number (59963046).

Almost surely, 2^978948459 is an apocalyptic number.

978948459 is a deficient number, since it is larger than the sum of its proper divisors (460164645).

978948459 is a wasteful number, since it uses less digits than its factorization.

978948459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8459 (or 8456 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The square root of 978948459 is about 31288.1520547315. The cubic root of 978948459 is about 992.9329947516.

The spelling of 978948459 in words is "nine hundred seventy-eight million, nine hundred forty-eight thousand, four hundred fifty-nine".