3465923821 has 4 divisors (see below), whose sum is σ = 3470105500. Its totient is φ = 3461742144.

The previous prime is 3465923809. The next prime is 3465923831. The reversal of 3465923821 is 1283295643.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1890945225 + 1574978596 = 43485^2 + 39686^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3465923821 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 (3465923831) by changing a digit.

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, 2089596 + ... + 2091253.

It is an arithmetic number, because the mean of its divisors is an integer number (867526375).

Almost surely, 2^3465923821 is an apocalyptic number.

It is an amenable number.

3465923821 is a deficient number, since it is larger than the sum of its proper divisors (4181679).

3465923821 is an equidigital number, since it uses as much as digits as its factorization.

3465923821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181678.

The product of its digits is 311040, while the sum is 43.

The square root of 3465923821 is about 58872.0971343811. The cubic root of 3465923821 is about 1513.3510101577.

The spelling of 3465923821 in words is "three billion, four hundred sixty-five million, nine hundred twenty-three thousand, eight hundred twenty-one".