216927012 has 24 divisors (see below), whose sum is σ = 506914912. Its totient is φ = 72201600.

The previous prime is 216926993. The next prime is 216927031. The reversal of 216927012 is 210729612.

It is an interprime number because it is at equal distance from previous prime (216926993) and next prime (216927031).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4789 + ... + 21372.

Almost surely, 2^216927012 is an apocalyptic number.

It is an amenable number.

216927012 is an abundant number, since it is smaller than the sum of its proper divisors (289987900).

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

216927012 is a wasteful number, since it uses less digits than its factorization.

216927012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26859 (or 26857 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 216927012 is about 14728.4422801598. The cubic root of 216927012 is about 600.8571194385.

The spelling of 216927012 in words is "two hundred sixteen million, nine hundred twenty-seven thousand, twelve".