211360987 has 2 divisors, whose sum is σ = 211360988. Its totient is φ = 211360986.

The previous prime is 211360973. The next prime is 211360991. The reversal of 211360987 is 789063112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211360987 - 2⁷ = 211360859 is a prime.

It is a super-2 number, since 2×211360987² = 89346933651228338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211360907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105680493 + 105680494.

It is an arithmetic number, because the mean of its divisors is an integer number (105680494).

Almost surely, 2^211360987 is an apocalyptic number.

211360987 is a deficient number, since it is larger than the sum of its proper divisors (1).

211360987 is an equidigital number, since it uses as much as digits as its factorization.

211360987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 211360987 is about 14538.2594212650. The cubic root of 211360987 is about 595.6734948350.

The spelling of 211360987 in words is "two hundred eleven million, three hundred sixty thousand, nine hundred eighty-seven".