3704377421 has 2 divisors, whose sum is σ = 3704377422. Its totient is φ = 3704377420.

The previous prime is 3704377409. The next prime is 3704377441. The reversal of 3704377421 is 1247734073.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2809530025 + 894847396 = 53005^2 + 29914^2 .

It is an emirp because it is prime and its reverse (1247734073) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3704377421 is a prime.

It is a super-2 number, since 2×3704377421² = 27444824154429222482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3704377441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1852188710 + 1852188711.

It is an arithmetic number, because the mean of its divisors is an integer number (1852188711).

Almost surely, 2^3704377421 is an apocalyptic number.

It is an amenable number.

3704377421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3704377421 is an equidigital number, since it uses as much as digits as its factorization.

3704377421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 38.

The square root of 3704377421 is about 60863.5968457337. The cubic root of 3704377421 is about 1547.2900857435.

The spelling of 3704377421 in words is "three billion, seven hundred four million, three hundred seventy-seven thousand, four hundred twenty-one".