983172277 has 2 divisors, whose sum is σ = 983172278. Its totient is φ = 983172276.

The previous prime is 983172247. The next prime is 983172299. The reversal of 983172277 is 772271389.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 964040401 + 19131876 = 31049^2 + 4374^2 .

It is an emirp because it is prime and its reverse (772271389) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 983172277 - 2²³ = 974783669 is a prime.

It is a super-2 number, since 2×983172277² = 1933255452522729458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (983172247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491586138 + 491586139.

It is an arithmetic number, because the mean of its divisors is an integer number (491586139).

Almost surely, 2^983172277 is an apocalyptic number.

It is an amenable number.

983172277 is a deficient number, since it is larger than the sum of its proper divisors (1).

983172277 is an equidigital number, since it uses as much as digits as its factorization.

983172277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 46.

The square root of 983172277 is about 31355.5780842899. The cubic root of 983172277 is about 994.3589979296.

The spelling of 983172277 in words is "nine hundred eighty-three million, one hundred seventy-two thousand, two hundred seventy-seven".