216879041 has 2 divisors, whose sum is σ = 216879042. Its totient is φ = 216879040.

The previous prime is 216879011. The next prime is 216879071. The reversal of 216879041 is 140978612.

It is a balanced prime because it is at equal distance from previous prime (216879011) and next prime (216879071).

It can be written as a sum of positive squares in only one way, i.e., 150798400 + 66080641 = 12280^2 + 8129^2 .

It is a cyclic number.

It is not a de Polignac number, because 216879041 - 2²² = 212684737 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 216878986 and 216879004.

It is not a weakly prime, because it can be changed into another prime (216879011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108439520 + 108439521.

It is an arithmetic number, because the mean of its divisors is an integer number (108439521).

Almost surely, 2^216879041 is an apocalyptic number.

It is an amenable number.

216879041 is a deficient number, since it is larger than the sum of its proper divisors (1).

216879041 is an equidigital number, since it uses as much as digits as its factorization.

216879041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 216879041 is about 14726.8136743832. The cubic root of 216879041 is about 600.8128252132.

The spelling of 216879041 in words is "two hundred sixteen million, eight hundred seventy-nine thousand, forty-one".