767631047 has 2 divisors, whose sum is σ = 767631048. Its totient is φ = 767631046.

The previous prime is 767631013. The next prime is 767631097. The reversal of 767631047 is 740136767.

It is a weak prime.

It is an emirp because it is prime and its reverse (740136767) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 767631047 - 2²⁶ = 700522183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 767630995 and 767631013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (767631097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383815523 + 383815524.

It is an arithmetic number, because the mean of its divisors is an integer number (383815524).

Almost surely, 2^767631047 is an apocalyptic number.

767631047 is a deficient number, since it is larger than the sum of its proper divisors (1).

767631047 is an equidigital number, since it uses as much as digits as its factorization.

767631047 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 41.

The square root of 767631047 is about 27706.1553991166. The cubic root of 767631047 is about 915.6247227216.

The spelling of 767631047 in words is "seven hundred sixty-seven million, six hundred thirty-one thousand, forty-seven".