276952397 has 4 divisors (see below), whose sum is σ = 278194560. Its totient is φ = 275710236.

The previous prime is 276952381. The next prime is 276952399. The reversal of 276952397 is 793259672.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 276952397 - 2⁴ = 276952381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276952399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620747 + ... + 621192.

It is an arithmetic number, because the mean of its divisors is an integer number (69548640).

Almost surely, 2^276952397 is an apocalyptic number.

It is an amenable number.

276952397 is a deficient number, since it is larger than the sum of its proper divisors (1242163).

276952397 is a wasteful number, since it uses less digits than its factorization.

276952397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242162.

The product of its digits is 1428840, while the sum is 50.

The square root of 276952397 is about 16641.8868221124. The cubic root of 276952397 is about 651.8310477523.

The spelling of 276952397 in words is "two hundred seventy-six million, nine hundred fifty-two thousand, three hundred ninety-seven".