999214656 has 112 divisors (see below), whose sum is σ = 2924056128. Its totient is φ = 298598400.

The previous prime is 999214651. The next prime is 999214703. The reversal of 999214656 is 656412999.

999214656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 999214599 and 999214608.

It is not an unprimeable number, because it can be changed into a prime (999214651) 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, 150936 + ... + 157416.

It is an arithmetic number, because the mean of its divisors is an integer number (26107644).

Almost surely, 2^999214656 is an apocalyptic number.

999214656 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999214656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462028064).

999214656 is an abundant number, since it is smaller than the sum of its proper divisors (1924841472).

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

999214656 is a wasteful number, since it uses less digits than its factorization.

999214656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6580 (or 6570 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 51.

The square root of 999214656 is about 31610.3567838138. The cubic root of 999214656 is about 999.7381501073.

The spelling of 999214656 in words is "nine hundred ninety-nine million, two hundred fourteen thousand, six hundred fifty-six".