978337478 has 4 divisors (see below), whose sum is σ = 1467506220. Its totient is φ = 489168738.

The previous prime is 978337433. The next prime is 978337483. The reversal of 978337478 is 874733879.

978337478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244584368 + ... + 244584371.

It is an arithmetic number, because the mean of its divisors is an integer number (366876555).

Almost surely, 2^978337478 is an apocalyptic number.

978337478 is a deficient number, since it is larger than the sum of its proper divisors (489168742).

978337478 is a wasteful number, since it uses less digits than its factorization.

978337478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489168741.

The product of its digits is 7112448, while the sum is 56.

The square root of 978337478 is about 31278.3867550742. The cubic root of 978337478 is about 992.7263820873.

The spelling of 978337478 in words is "nine hundred seventy-eight million, three hundred thirty-seven thousand, four hundred seventy-eight".