3685946867 has 2 divisors, whose sum is σ = 3685946868. Its totient is φ = 3685946866.

The previous prime is 3685946861. The next prime is 3685946959. The reversal of 3685946867 is 7686495863.

It is a weak prime.

It is an emirp because it is prime and its reverse (7686495863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3685946867 - 2¹⁰ = 3685945843 is a prime.

It is not a weakly prime, because it can be changed into another prime (3685946861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1842973433 + 1842973434.

It is an arithmetic number, because the mean of its divisors is an integer number (1842973434).

Almost surely, 2^3685946867 is an apocalyptic number.

3685946867 is a deficient number, since it is larger than the sum of its proper divisors (1).

3685946867 is an equidigital number, since it uses as much as digits as its factorization.

3685946867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52254720, while the sum is 62.

The square root of 3685946867 is about 60711.9993658585. Note that the first 3 decimals coincide. The cubic root of 3685946867 is about 1544.7197177665.

The spelling of 3685946867 in words is "three billion, six hundred eighty-five million, nine hundred forty-six thousand, eight hundred sixty-seven".