619912 has 8 divisors (see below), whose sum is σ = 1162350. Its totient is φ = 309952.

The previous prime is 619909. The next prime is 619921. The reversal of 619912 is 219916.

It can be written as a sum of positive squares in only one way, i.e., 617796 + 2116 = 786^2 + 46^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38737 + ... + 38752.

2⁶¹⁹⁹¹² is an apocalyptic number.

It is an amenable number.

619912 is a deficient number, since it is larger than the sum of its proper divisors (542438).

619912 is a wasteful number, since it uses less digits than its factorization.

619912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77495 (or 77491 counting only the distinct ones).

The product of its digits is 972, while the sum is 28.

The square root of 619912 is about 787.3449053623. The cubic root of 619912 is about 85.2661553534.

The spelling of 619912 in words is "six hundred nineteen thousand, nine hundred twelve".