978654612 has 24 divisors (see below), whose sum is σ = 2459183776. Its totient is φ = 301124448.

The previous prime is 978654559. The next prime is 978654613. The reversal of 978654612 is 216456879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978654613) 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, 3136558 + ... + 3136869.

Almost surely, 2^978654612 is an apocalyptic number.

It is an amenable number.

978654612 is an abundant number, since it is smaller than the sum of its proper divisors (1480529164).

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

978654612 is a wasteful number, since it uses less digits than its factorization.

978654612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6273447 (or 6273445 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 978654612 is about 31283.4558832620. The cubic root of 978654612 is about 992.8336365824.

The spelling of 978654612 in words is "nine hundred seventy-eight million, six hundred fifty-four thousand, six hundred twelve".