3822901521 has 4 divisors (see below), whose sum is σ = 5097202032. Its totient is φ = 2548601012.

The previous prime is 3822901451. The next prime is 3822901573. The reversal of 3822901521 is 1251092283.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3822901521 - 2⁹ = 3822901009 is a prime.

It is a super-2 number, since 2×3822901521² = 29229152078528226882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3822901021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637150251 + ... + 637150256.

It is an arithmetic number, because the mean of its divisors is an integer number (1274300508).

Almost surely, 2^3822901521 is an apocalyptic number.

It is an amenable number.

3822901521 is a deficient number, since it is larger than the sum of its proper divisors (1274300511).

3822901521 is a wasteful number, since it uses less digits than its factorization.

3822901521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274300510.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 3822901521 is about 61829.6168595601. The cubic root of 3822901521 is about 1563.6193522547.

The spelling of 3822901521 in words is "three billion, eight hundred twenty-two million, nine hundred one thousand, five hundred twenty-one".