3820069901 has 4 divisors (see below), whose sum is σ = 3901348032. Its totient is φ = 3738791772.

The previous prime is 3820069879. The next prime is 3820069907. The reversal of 3820069901 is 1099600283.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1099600283 = 173 ⋅6356071.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3820069901 is a prime.

It is a super-2 number, since 2×3820069901² = 29185868097052299602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820069907) 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, 40638995 + ... + 40639088.

It is an arithmetic number, because the mean of its divisors is an integer number (975337008).

Almost surely, 2^3820069901 is an apocalyptic number.

It is an amenable number.

3820069901 is a deficient number, since it is larger than the sum of its proper divisors (81278131).

3820069901 is an equidigital number, since it uses as much as digits as its factorization.

3820069901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81278130.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 3820069901 is about 61806.7140446732. The cubic root of 3820069901 is about 1563.2331997104.

The spelling of 3820069901 in words is "three billion, eight hundred twenty million, sixty-nine thousand, nine hundred one".