771120047 has 2 divisors, whose sum is σ = 771120048. Its totient is φ = 771120046.

The previous prime is 771120013. The next prime is 771120059. The reversal of 771120047 is 740021177.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 771120047 - 2¹⁰ = 771119023 is a prime.

It is a super-2 number, since 2×771120047² = 1189252253770564418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (771120067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385560023 + 385560024.

It is an arithmetic number, because the mean of its divisors is an integer number (385560024).

Almost surely, 2^771120047 is an apocalyptic number.

771120047 is a deficient number, since it is larger than the sum of its proper divisors (1).

771120047 is an equidigital number, since it uses as much as digits as its factorization.

771120047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 771120047 is about 27769.0483632407. The cubic root of 771120047 is about 917.0098442376.

The spelling of 771120047 in words is "seven hundred seventy-one million, one hundred twenty thousand, forty-seven".