3731647273 has 2 divisors, whose sum is σ = 3731647274. Its totient is φ = 3731647272.

The previous prime is 3731647229. The next prime is 3731647279. The reversal of 3731647273 is 3727461373.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1886772969 + 1844874304 = 43437^2 + 42952^2 .

It is an emirp because it is prime and its reverse (3727461373) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3731647273 is a prime.

It is not a weakly prime, because it can be changed into another prime (3731647279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1865823636 + 1865823637.

It is an arithmetic number, because the mean of its divisors is an integer number (1865823637).

Almost surely, 2^3731647273 is an apocalyptic number.

It is an amenable number.

3731647273 is a deficient number, since it is larger than the sum of its proper divisors (1).

3731647273 is an equidigital number, since it uses as much as digits as its factorization.

3731647273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 444528, while the sum is 43.

The square root of 3731647273 is about 61087.2103881001. The cubic root of 3731647273 is about 1551.0776097080.

The spelling of 3731647273 in words is "three billion, seven hundred thirty-one million, six hundred forty-seven thousand, two hundred seventy-three".