3721201437 has 8 divisors (see below), whose sum is σ = 4964953504. Its totient is φ = 2479125168.

The previous prime is 3721201427. The next prime is 3721201457. The reversal of 3721201437 is 7341021273.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3721201437 - 2⁸ = 3721201181 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 (3721201427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413758 + ... + 422655.

It is an arithmetic number, because the mean of its divisors is an integer number (620619188).

Almost surely, 2^3721201437 is an apocalyptic number.

It is an amenable number.

3721201437 is a deficient number, since it is larger than the sum of its proper divisors (1243752067).

3721201437 is a wasteful number, since it uses less digits than its factorization.

3721201437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837899.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 3721201437 is about 61001.6511006055. The cubic root of 3721201437 is about 1549.6289693951.

The spelling of 3721201437 in words is "three billion, seven hundred twenty-one million, two hundred one thousand, four hundred thirty-seven".