619671963 has 4 divisors (see below), whose sum is σ = 826229288. Its totient is φ = 413114640.

The previous prime is 619671953. The next prime is 619672019. The reversal of 619671963 is 369176916.

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

It is not a de Polignac number, because 619671963 - 2⁵ = 619671931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (619671953) 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, 103278658 + ... + 103278663.

It is an arithmetic number, because the mean of its divisors is an integer number (206557322).

Almost surely, 2^619671963 is an apocalyptic number.

619671963 is a deficient number, since it is larger than the sum of its proper divisors (206557325).

619671963 is a wasteful number, since it uses less digits than its factorization.

619671963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206557324.

The product of its digits is 367416, while the sum is 48.

The square root of 619671963 is about 24893.2111829712. The cubic root of 619671963 is about 852.5514858984.

The spelling of 619671963 in words is "six hundred nineteen million, six hundred seventy-one thousand, nine hundred sixty-three".