684141948 has 72 divisors (see below), whose sum is σ = 2092682592. Its totient is φ = 183969792.

The previous prime is 684141947. The next prime is 684141977. The reversal of 684141948 is 849141486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684141947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75565 + ... + 84132.

It is an arithmetic number, because the mean of its divisors is an integer number (29065036).

Almost surely, 2^684141948 is an apocalyptic number.

684141948 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

684141948 is an abundant number, since it is smaller than the sum of its proper divisors (1408540644).

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

684141948 is a wasteful number, since it uses less digits than its factorization.

684141948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159731 (or 159726 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 684141948 is about 26156.1072791805. The cubic root of 684141948 is about 881.1477568419.

The spelling of 684141948 in words is "six hundred eighty-four million, one hundred forty-one thousand, nine hundred forty-eight".