619490995 has 4 divisors (see below), whose sum is σ = 743389200. Its totient is φ = 495592792.

The previous prime is 619490987. The next prime is 619491013. The reversal of 619490995 is 599094916.

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

It is a cyclic number.

It is not a de Polignac number, because 619490995 - 2³ = 619490987 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61949095 + ... + 61949104.

It is an arithmetic number, because the mean of its divisors is an integer number (185847300).

Almost surely, 2^619490995 is an apocalyptic number.

619490995 is a deficient number, since it is larger than the sum of its proper divisors (123898205).

619490995 is a wasteful number, since it uses less digits than its factorization.

619490995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123898204.

The product of its (nonzero) digits is 787320, while the sum is 52.

The square root of 619490995 is about 24889.5760309411. The cubic root of 619490995 is about 852.4684852315.

The spelling of 619490995 in words is "six hundred nineteen million, four hundred ninety thousand, nine hundred ninety-five".