3721343867 has 4 divisors (see below), whose sum is σ = 3724254720. Its totient is φ = 3718433016.

The previous prime is 3721343837. The next prime is 3721343869. The reversal of 3721343867 is 7683431273.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7683431273 = 7 ⋅1097633039.

It is a cyclic number.

It is not a de Polignac number, because 3721343867 - 2¹² = 3721339771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3721343869) 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, 1453508 + ... + 1456065.

It is an arithmetic number, because the mean of its divisors is an integer number (931063680).

Almost surely, 2^3721343867 is an apocalyptic number.

3721343867 is a deficient number, since it is larger than the sum of its proper divisors (2910853).

3721343867 is a wasteful number, since it uses less digits than its factorization.

3721343867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910852.

The product of its digits is 508032, while the sum is 44.

The square root of 3721343867 is about 61002.8185168522. The cubic root of 3721343867 is about 1549.6487399666.

The spelling of 3721343867 in words is "three billion, seven hundred twenty-one million, three hundred forty-three thousand, eight hundred sixty-seven".