1630674517 has 2 divisors, whose sum is σ = 1630674518. Its totient is φ = 1630674516.

The previous prime is 1630674491. The next prime is 1630674547. The reversal of 1630674517 is 7154760361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1552281201 + 78393316 = 39399^2 + 8854^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1630674517 is a prime.

It is a super-3 number, since 3×1630674517³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1630674517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1630674547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815337258 + 815337259.

It is an arithmetic number, because the mean of its divisors is an integer number (815337259).

Almost surely, 2^1630674517 is an apocalyptic number.

It is an amenable number.

1630674517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630674517 is an equidigital number, since it uses as much as digits as its factorization.

1630674517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 1630674517 is about 40381.6111243719. The cubic root of 1630674517 is about 1177.0342349150.

The spelling of 1630674517 in words is "one billion, six hundred thirty million, six hundred seventy-four thousand, five hundred seventeen".