499387619 has 4 divisors (see below), whose sum is σ = 499602744. Its totient is φ = 499172496.

The previous prime is 499387613. The next prime is 499387639. The reversal of 499387619 is 916783994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499387619 is a prime.

It is a super-2 number, since 2×499387619² = 498775988020978322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499387613) 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, 104042 + ... + 108735.

It is an arithmetic number, because the mean of its divisors is an integer number (124900686).

Almost surely, 2^499387619 is an apocalyptic number.

499387619 is a deficient number, since it is larger than the sum of its proper divisors (215125).

499387619 is a wasteful number, since it uses less digits than its factorization.

499387619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215124.

The product of its digits is 2939328, while the sum is 56.

The square root of 499387619 is about 22346.9823242423. The cubic root of 499387619 is about 793.3763621924.

The spelling of 499387619 in words is "four hundred ninety-nine million, three hundred eighty-seven thousand, six hundred nineteen".