341723821 has 4 divisors (see below), whose sum is σ = 345041632. Its totient is φ = 338406012.

The previous prime is 341723813. The next prime is 341723831. The reversal of 341723821 is 128327143.

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 341723821 - 2³ = 341723813 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 (341723801) 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, 1658751 + ... + 1658956.

It is an arithmetic number, because the mean of its divisors is an integer number (86260408).

Almost surely, 2^341723821 is an apocalyptic number.

It is an amenable number.

341723821 is a deficient number, since it is larger than the sum of its proper divisors (3317811).

341723821 is a wasteful number, since it uses less digits than its factorization.

341723821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317810.

The product of its digits is 8064, while the sum is 31.

The square root of 341723821 is about 18485.7734758381. The cubic root of 341723821 is about 699.1307720998.

The spelling of 341723821 in words is "three hundred forty-one million, seven hundred twenty-three thousand, eight hundred twenty-one".