276401497 has 2 divisors, whose sum is σ = 276401498. Its totient is φ = 276401496.

The previous prime is 276401491. The next prime is 276401527. The reversal of 276401497 is 794104672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230310976 + 46090521 = 15176^2 + 6789^2 .

It is a cyclic number.

It is not a de Polignac number, because 276401497 - 2²³ = 268012889 is a prime.

It is not a weakly prime, because it can be changed into another prime (276401491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138200748 + 138200749.

It is an arithmetic number, because the mean of its divisors is an integer number (138200749).

Almost surely, 2^276401497 is an apocalyptic number.

It is an amenable number.

276401497 is a deficient number, since it is larger than the sum of its proper divisors (1).

276401497 is an equidigital number, since it uses as much as digits as its factorization.

276401497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 276401497 is about 16625.3269742282. The cubic root of 276401497 is about 651.3985641814.

The spelling of 276401497 in words is "two hundred seventy-six million, four hundred one thousand, four hundred ninety-seven".