619872 has 48 divisors (see below), whose sum is σ = 1778112. Its totient is φ = 187520.

The previous prime is 619867. The next prime is 619897. The reversal of 619872 is 278916.

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

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 619872.

It is an unprimeable number.

619872 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763 + ... + 1349.

It is an arithmetic number, because the mean of its divisors is an integer number (37044).

2⁶¹⁹⁸⁷² 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 619872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (889056).

619872 is an abundant number, since it is smaller than the sum of its proper divisors (1158240).

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

619872 is a wasteful number, since it uses less digits than its factorization.

619872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611 (or 603 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 619872 is about 787.3195031244. The cubic root of 619872 is about 85.2643213729.

The spelling of 619872 in words is "six hundred nineteen thousand, eight hundred seventy-two".