516405079 has 2 divisors, whose sum is σ = 516405080. Its totient is φ = 516405078.

The previous prime is 516404957. The next prime is 516405089. The reversal of 516405079 is 970504615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 516405079 - 2⁷ = 516404951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516405089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258202539 + 258202540.

It is an arithmetic number, because the mean of its divisors is an integer number (258202540).

Almost surely, 2^516405079 is an apocalyptic number.

516405079 is a deficient number, since it is larger than the sum of its proper divisors (1).

516405079 is an equidigital number, since it uses as much as digits as its factorization.

516405079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 516405079 is about 22724.5479382979. The cubic root of 516405079 is about 802.2877634160.

The spelling of 516405079 in words is "five hundred sixteen million, four hundred five thousand, seventy-nine".