616243087 has 2 divisors, whose sum is σ = 616243088. Its totient is φ = 616243086.

The previous prime is 616243063. The next prime is 616243157. The reversal of 616243087 is 780342616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 616243087 - 2⁷ = 616242959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616243007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308121543 + 308121544.

It is an arithmetic number, because the mean of its divisors is an integer number (308121544).

Almost surely, 2^616243087 is an apocalyptic number.

616243087 is a deficient number, since it is larger than the sum of its proper divisors (1).

616243087 is an equidigital number, since it uses as much as digits as its factorization.

616243087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 616243087 is about 24824.2439361202. The cubic root of 616243087 is about 850.9760814744.

The spelling of 616243087 in words is "six hundred sixteen million, two hundred forty-three thousand, eighty-seven".