641716092 has 72 divisors (see below), whose sum is σ = 1667309280. Its totient is φ = 207982080.

The previous prime is 641716091. The next prime is 641716093. The reversal of 641716092 is 290617146.

641716092 is a `hidden beast` number, since 6 + 41 + 7 + 1 + 609 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (641716091) and next prime (641716093).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641716091) 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, 603153 + ... + 604215.

Almost surely, 2^641716092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 641716092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (833654640).

641716092 is an abundant number, since it is smaller than the sum of its proper divisors (1025593188).

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

641716092 is a wasteful number, since it uses less digits than its factorization.

641716092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 1518 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 641716092 is about 25332.1158216206. The cubic root of 641716092 is about 862.5434402821.

The spelling of 641716092 in words is "six hundred forty-one million, seven hundred sixteen thousand, ninety-two".