3684857401 has 2 divisors, whose sum is σ = 3684857402. Its totient is φ = 3684857400.

The previous prime is 3684857339. The next prime is 3684857413. The reversal of 3684857401 is 1047584863.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3669451776 + 15405625 = 60576^2 + 3925^2 .

It is a cyclic number.

It is not a de Polignac number, because 3684857401 - 2¹¹ = 3684855353 is a prime.

It is not a weakly prime, because it can be changed into another prime (3684857431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1842428700 + 1842428701.

It is an arithmetic number, because the mean of its divisors is an integer number (1842428701).

Almost surely, 2^3684857401 is an apocalyptic number.

It is an amenable number.

3684857401 is a deficient number, since it is larger than the sum of its proper divisors (1).

3684857401 is an equidigital number, since it uses as much as digits as its factorization.

3684857401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 3684857401 is about 60703.0262919403. The cubic root of 3684857401 is about 1544.5675103412.

It can be divided in two parts, 36848 and 57401, that added together give a palindrome (94249).

The spelling of 3684857401 in words is "three billion, six hundred eighty-four million, eight hundred fifty-seven thousand, four hundred one".