619880479 has 4 divisors (see below), whose sum is σ = 619931376. Its totient is φ = 619829584.

The previous prime is 619880473. The next prime is 619880483. The reversal of 619880479 is 974088916.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 619880479 - 2¹¹ = 619878431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619880473) 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, 4827 + ... + 35539.

It is an arithmetic number, because the mean of its divisors is an integer number (154982844).

Almost surely, 2^619880479 is an apocalyptic number.

619880479 is a deficient number, since it is larger than the sum of its proper divisors (50897).

619880479 is a wasteful number, since it uses less digits than its factorization.

619880479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50896.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 619880479 is about 24897.3990408637. The cubic root of 619880479 is about 852.6471013748.

The spelling of 619880479 in words is "six hundred nineteen million, eight hundred eighty thousand, four hundred seventy-nine".