616478479 has 2 divisors, whose sum is σ = 616478480. Its totient is φ = 616478478.

The previous prime is 616478449. The next prime is 616478507. The reversal of 616478479 is 974874616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616478479 - 2¹³ = 616470287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616478449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308239239 + 308239240.

It is an arithmetic number, because the mean of its divisors is an integer number (308239240).

Almost surely, 2^616478479 is an apocalyptic number.

616478479 is a deficient number, since it is larger than the sum of its proper divisors (1).

616478479 is an equidigital number, since it uses as much as digits as its factorization.

616478479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 52.

The square root of 616478479 is about 24828.9846550357. The cubic root of 616478479 is about 851.0844193832.

The spelling of 616478479 in words is "six hundred sixteen million, four hundred seventy-eight thousand, four hundred seventy-nine".