841721952 has 48 divisors (see below), whose sum is σ = 2339496432. Its totient is φ = 264069120.

The previous prime is 841721941. The next prime is 841721963. The reversal of 841721952 is 259127148.

It is an interprime number because it is at equal distance from previous prime (841721941) and next prime (841721963).

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 841721952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256249 + ... + 259512.

It is an arithmetic number, because the mean of its divisors is an integer number (48739509).

Almost surely, 2^841721952 is an apocalyptic number.

It is an amenable number.

841721952 is an abundant number, since it is smaller than the sum of its proper divisors (1497774480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

841721952 is a wasteful number, since it uses less digits than its factorization.

841721952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515791 (or 515783 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 841721952 is about 29012.4447780603. Note that the first 3 decimals coincide. The cubic root of 841721952 is about 944.1830895472.

The spelling of 841721952 in words is "eight hundred forty-one million, seven hundred twenty-one thousand, nine hundred fifty-two".