1097630813 has 2 divisors, whose sum is σ = 1097630814. Its totient is φ = 1097630812.

The previous prime is 1097630759. The next prime is 1097630837. The reversal of 1097630813 is 3180367901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 775176964 + 322453849 = 27842^2 + 17957^2 .

It is a cyclic number.

It is not a de Polignac number, because 1097630813 - 2¹⁶ = 1097565277 is a prime.

It is a super-3 number, since 3×1097630813³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1097630843) 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 as a sum of consecutive naturals, namely, 548815406 + 548815407.

It is an arithmetic number, because the mean of its divisors is an integer number (548815407).

Almost surely, 2^1097630813 is an apocalyptic number.

It is an amenable number.

1097630813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097630813 is an equidigital number, since it uses as much as digits as its factorization.

1097630813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 1097630813 is about 33130.5118131308. The cubic root of 1097630813 is about 1031.5384722554.

The spelling of 1097630813 in words is "one billion, ninety-seven million, six hundred thirty thousand, eight hundred thirteen".