985506456 has 64 divisors (see below), whose sum is σ = 2845860480. Its totient is φ = 281070080.

The previous prime is 985506451. The next prime is 985506469. The reversal of 985506456 is 654605589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985506451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105306 + ... + 114281.

It is an arithmetic number, because the mean of its divisors is an integer number (44466570).

Almost surely, 2^985506456 is an apocalyptic number.

It is an amenable number.

985506456 is an abundant number, since it is smaller than the sum of its proper divisors (1860354024).

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

985506456 is a wasteful number, since it uses less digits than its factorization.

985506456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219624 (or 219620 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 48.

The square root of 985506456 is about 31392.7771310536. Note that the first 3 decimals coincide. The cubic root of 985506456 is about 995.1452885827.

The spelling of 985506456 in words is "nine hundred eighty-five million, five hundred six thousand, four hundred fifty-six".