3727421401 has 4 divisors (see below), whose sum is σ = 4066277904. Its totient is φ = 3388564900.

The previous prime is 3727421389. The next prime is 3727421419. The reversal of 3727421401 is 1041247273.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1041247273 = 11 ⋅94658843.

It is a cyclic number.

It is not a de Polignac number, because 3727421401 - 2³¹ = 1579937753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3727421441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169428235 + ... + 169428256.

It is an arithmetic number, because the mean of its divisors is an integer number (1016569476).

Almost surely, 2^3727421401 is an apocalyptic number.

It is an amenable number.

3727421401 is a deficient number, since it is larger than the sum of its proper divisors (338856503).

3727421401 is a wasteful number, since it uses less digits than its factorization.

3727421401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338856502.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 3727421401 is about 61052.6117459360. The cubic root of 3727421401 is about 1550.4918870344.

Adding to 3727421401 its reverse (1041247273), we get a palindrome (4768668674).

The spelling of 3727421401 in words is "three billion, seven hundred twenty-seven million, four hundred twenty-one thousand, four hundred one".