616078447 has 2 divisors, whose sum is σ = 616078448. Its totient is φ = 616078446.

The previous prime is 616078429. The next prime is 616078457. The reversal of 616078447 is 744870616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616078447 - 2⁷ = 616078319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616078457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308039223 + 308039224.

It is an arithmetic number, because the mean of its divisors is an integer number (308039224).

Almost surely, 2^616078447 is an apocalyptic number.

616078447 is a deficient number, since it is larger than the sum of its proper divisors (1).

616078447 is an equidigital number, since it uses as much as digits as its factorization.

616078447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 616078447 is about 24820.9276015221. The cubic root of 616078447 is about 850.9002903978.

The spelling of 616078447 in words is "six hundred sixteen million, seventy-eight thousand, four hundred forty-seven".