212757963 has 16 divisors (see below), whose sum is σ = 309868416. Its totient is φ = 128776640.

The previous prime is 212757959. The next prime is 212757973. The reversal of 212757963 is 369757212.

It is a cyclic number.

It is not a de Polignac number, because 212757963 - 2² = 212757959 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (212757913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24520 + ... + 32042.

It is an arithmetic number, because the mean of its divisors is an integer number (19366776).

Almost surely, 2^212757963 is an apocalyptic number.

212757963 is a deficient number, since it is larger than the sum of its proper divisors (97110453).

212757963 is a wasteful number, since it uses less digits than its factorization.

212757963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8394.

The product of its digits is 158760, while the sum is 42.

The square root of 212757963 is about 14586.2251113851. The cubic root of 212757963 is about 596.9829685188.

The spelling of 212757963 in words is "two hundred twelve million, seven hundred fifty-seven thousand, nine hundred sixty-three".