5128667 has 2 divisors, whose sum is σ = 5128668. Its totient is φ = 5128666.

The previous prime is 5128661. The next prime is 5128691. The reversal of 5128667 is 7668215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5128667 - 2⁶ = 5128603 is a prime.

It is not a weakly prime, because it can be changed into another prime (5128661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564333 + 2564334.

It is an arithmetic number, because the mean of its divisors is an integer number (2564334).

Almost surely, 2^5128667 is an apocalyptic number.

5128667 is a deficient number, since it is larger than the sum of its proper divisors (1).

5128667 is an equidigital number, since it uses as much as digits as its factorization.

5128667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 5128667 is about 2264.6560445242. The cubic root of 5128667 is about 172.4519729070.

The spelling of 5128667 in words is "five million, one hundred twenty-eight thousand, six hundred sixty-seven".