276971197 has 2 divisors, whose sum is σ = 276971198. Its totient is φ = 276971196.

The previous prime is 276971173. The next prime is 276971203. The reversal of 276971197 is 791179672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275360836 + 1610361 = 16594^2 + 1269^2 .

It is a cyclic number.

It is not a de Polignac number, because 276971197 - 2⁷ = 276971069 is a prime.

It is a super-2 number, since 2×276971197² = 153426087935225618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 276971197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276971147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138485598 + 138485599.

It is an arithmetic number, because the mean of its divisors is an integer number (138485599).

Almost surely, 2^276971197 is an apocalyptic number.

It is an amenable number.

276971197 is a deficient number, since it is larger than the sum of its proper divisors (1).

276971197 is an equidigital number, since it uses as much as digits as its factorization.

276971197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 333396, while the sum is 49.

The square root of 276971197 is about 16642.4516523257. The cubic root of 276971197 is about 651.8457965522.

The spelling of 276971197 in words is "two hundred seventy-six million, nine hundred seventy-one thousand, one hundred ninety-seven".