983216279 has 2 divisors, whose sum is σ = 983216280. Its totient is φ = 983216278.

The previous prime is 983216231. The next prime is 983216287. The reversal of 983216279 is 972612389.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 983216279 - 2¹² = 983212183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (983216219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491608139 + 491608140.

It is an arithmetic number, because the mean of its divisors is an integer number (491608140).

Almost surely, 2^983216279 is an apocalyptic number.

983216279 is a deficient number, since it is larger than the sum of its proper divisors (1).

983216279 is an equidigital number, since it uses as much as digits as its factorization.

983216279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 983216279 is about 31356.2797378771. The cubic root of 983216279 is about 994.3738319293.

The spelling of 983216279 in words is "nine hundred eighty-three million, two hundred sixteen thousand, two hundred seventy-nine".