3722006815 has 4 divisors (see below), whose sum is σ = 4466408184. Its totient is φ = 2977605448.

The previous prime is 3722006797. The next prime is 3722006831. The reversal of 3722006815 is 5186002273.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5186002273 = 67 ⋅77403019.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3722006815 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372200677 + ... + 372200686.

It is an arithmetic number, because the mean of its divisors is an integer number (1116602046).

Almost surely, 2^3722006815 is an apocalyptic number.

3722006815 is a deficient number, since it is larger than the sum of its proper divisors (744401369).

3722006815 is an equidigital number, since it uses as much as digits as its factorization.

3722006815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744401368.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 3722006815 is about 61008.2520238041. The cubic root of 3722006815 is about 1549.7407565042.

The spelling of 3722006815 in words is "three billion, seven hundred twenty-two million, six thousand, eight hundred fifteen".