609028919 has 4 divisors (see below), whose sum is σ = 609083496. Its totient is φ = 608974344.

The previous prime is 609028897. The next prime is 609028943. The reversal of 609028919 is 919820906.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 919820906 = 2 ⋅459910453.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-609028919 is a prime.

It is a super-2 number, since 2×609028919² = 741832448356617122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 609028919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609028949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3824 + ... + 35109.

It is an arithmetic number, because the mean of its divisors is an integer number (152270874).

Almost surely, 2^609028919 is an apocalyptic number.

609028919 is a deficient number, since it is larger than the sum of its proper divisors (54577).

609028919 is a wasteful number, since it uses less digits than its factorization.

609028919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54576.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 609028919 is about 24678.5112800590. The cubic root of 609028919 is about 847.6423334240.

The spelling of 609028919 in words is "six hundred nine million, twenty-eight thousand, nine hundred nineteen".