127790387 has 2 divisors, whose sum is σ = 127790388. Its totient is φ = 127790386.

The previous prime is 127790363. The next prime is 127790413. The reversal of 127790387 is 783097721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127790387 - 2¹² = 127786291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (127790087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63895193 + 63895194.

It is an arithmetic number, because the mean of its divisors is an integer number (63895194).

Almost surely, 2^127790387 is an apocalyptic number.

127790387 is a deficient number, since it is larger than the sum of its proper divisors (1).

127790387 is an equidigital number, since it uses as much as digits as its factorization.

127790387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 127790387 is about 11304.4410299669. The cubic root of 127790387 is about 503.6931698292.

The spelling of 127790387 in words is "one hundred twenty-seven million, seven hundred ninety thousand, three hundred eighty-seven".