127764047 has 2 divisors, whose sum is σ = 127764048. Its totient is φ = 127764046.

The previous prime is 127764019. The next prime is 127764067. The reversal of 127764047 is 740467721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127764047 - 2⁶ = 127763983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 127764047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127764017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63882023 + 63882024.

It is an arithmetic number, because the mean of its divisors is an integer number (63882024).

Almost surely, 2^127764047 is an apocalyptic number.

127764047 is a deficient number, since it is larger than the sum of its proper divisors (1).

127764047 is an equidigital number, since it uses as much as digits as its factorization.

127764047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 127764047 is about 11303.2759410712. The cubic root of 127764047 is about 503.6585605756.

The spelling of 127764047 in words is "one hundred twenty-seven million, seven hundred sixty-four thousand, forty-seven".