978317370 has 96 divisors (see below), whose sum is σ = 2642524560. Its totient is φ = 250905600.

The previous prime is 978317369. The next prime is 978317387. The reversal of 978317370 is 73713879.

It can be written as a sum of positive squares in 8 ways, for example, as 329749281 + 648568089 = 18159^2 + 25467^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 294720 + ... + 298020.

Almost surely, 2^978317370 is an apocalyptic number.

978317370 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 978317370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321262280).

978317370 is an abundant number, since it is smaller than the sum of its proper divisors (1664207190).

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

978317370 is a wasteful number, since it uses less digits than its factorization.

978317370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440 (or 3437 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 978317370 is about 31278.0653174073. The cubic root of 978317370 is about 992.7195807945.

The spelling of 978317370 in words is "nine hundred seventy-eight million, three hundred seventeen thousand, three hundred seventy".