2612921317 has 2 divisors, whose sum is σ = 2612921318. Its totient is φ = 2612921316.

The previous prime is 2612921303. The next prime is 2612921341. The reversal of 2612921317 is 7131292162.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1552832836 + 1060088481 = 39406^2 + 32559^2 .

It is a cyclic number.

It is not a de Polignac number, because 2612921317 - 2³¹ = 465437669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2612921387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1306460658 + 1306460659.

It is an arithmetic number, because the mean of its divisors is an integer number (1306460659).

Almost surely, 2^2612921317 is an apocalyptic number.

It is an amenable number.

2612921317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2612921317 is an equidigital number, since it uses as much as digits as its factorization.

2612921317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 2612921317 is about 51116.7420421138. The cubic root of 2612921317 is about 1377.3430142695.

The spelling of 2612921317 in words is "two billion, six hundred twelve million, nine hundred twenty-one thousand, three hundred seventeen".