3870148421 has 4 divisors (see below), whose sum is σ = 3872414700. Its totient is φ = 3867882144.

The previous prime is 3870148411. The next prime is 3870148427. The reversal of 3870148421 is 1248410783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1248410783 = 281 ⋅4442743.

It can be written as a sum of positive squares in 2 ways, for example, as 1663497796 + 2206650625 = 40786^2 + 46975^2 .

It is a cyclic number.

It is not a de Polignac number, because 3870148421 - 2¹⁴ = 3870132037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870148427) 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, 1130576 + ... + 1133993.

It is an arithmetic number, because the mean of its divisors is an integer number (968103675).

Almost surely, 2^3870148421 is an apocalyptic number.

It is an amenable number.

3870148421 is a deficient number, since it is larger than the sum of its proper divisors (2266279).

3870148421 is a wasteful number, since it uses less digits than its factorization.

3870148421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266278.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 3870148421 is about 62210.5169645776. The cubic root of 3870148421 is about 1570.0345403303.

The spelling of 3870148421 in words is "three billion, eight hundred seventy million, one hundred forty-eight thousand, four hundred twenty-one".