3661000697 has 2 divisors, whose sum is σ = 3661000698. Its totient is φ = 3661000696.

The previous prime is 3661000691. The next prime is 3661000789. The reversal of 3661000697 is 7960001663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3621512041 + 39488656 = 60179^2 + 6284^2 .

It is an emirp because it is prime and its reverse (7960001663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3661000697 - 2⁶ = 3661000633 is a prime.

It is a super-2 number, since 2×3661000697² = 26805852206868971618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3661000697.

It is not a weakly prime, because it can be changed into another prime (3661000691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830500348 + 1830500349.

It is an arithmetic number, because the mean of its divisors is an integer number (1830500349).

Almost surely, 2^3661000697 is an apocalyptic number.

It is an amenable number.

3661000697 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661000697 is an equidigital number, since it uses as much as digits as its factorization.

3661000697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 3661000697 is about 60506.2037893636. The cubic root of 3661000697 is about 1541.2269831618.

The spelling of 3661000697 in words is "three billion, six hundred sixty-one million, six hundred ninety-seven", and thus it is an aban number.