3721858 has 8 divisors (see below), whose sum is σ = 6380352. Its totient is φ = 1595076.

The previous prime is 3721849. The next prime is 3721859. The reversal of 3721858 is 8581273.

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

It is not an unprimeable number, because it can be changed into a prime (3721859) 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, 132910 + ... + 132937.

It is an arithmetic number, because the mean of its divisors is an integer number (797544).

Almost surely, 2^3721858 is an apocalyptic number.

3721858 is a deficient number, since it is larger than the sum of its proper divisors (2658494).

3721858 is a wasteful number, since it uses less digits than its factorization.

3721858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265856.

The product of its digits is 13440, while the sum is 34.

The square root of 3721858 is about 1929.2117561325. The cubic root of 3721858 is about 154.9720102078.

The spelling of 3721858 in words is "three million, seven hundred twenty-one thousand, eight hundred fifty-eight".