978276552 has 32 divisors (see below), whose sum is σ = 2668027680. Its totient is φ = 296447360.

The previous prime is 978276547. The next prime is 978276557. The reversal of 978276552 is 255672879.

It is an interprime number because it is at equal distance from previous prime (978276547) and next prime (978276557).

It is a junction number, because it is equal to n+sod(n) for n = 978276495 and 978276504.

It is not an unprimeable number, because it can be changed into a prime (978276557) 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, 1852533 + ... + 1853060.

It is an arithmetic number, because the mean of its divisors is an integer number (83375865).

Almost surely, 2^978276552 is an apocalyptic number.

It is an amenable number.

978276552 is an abundant number, since it is smaller than the sum of its proper divisors (1689751128).

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

978276552 is a wasteful number, since it uses less digits than its factorization.

978276552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705613 (or 3705609 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The square root of 978276552 is about 31277.4128086068. The cubic root of 978276552 is about 992.7057743030.

The spelling of 978276552 in words is "nine hundred seventy-eight million, two hundred seventy-six thousand, five hundred fifty-two".