767981413 has 2 divisors, whose sum is σ = 767981414. Its totient is φ = 767981412.

The previous prime is 767981411. The next prime is 767981429. The reversal of 767981413 is 314189767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 693900964 + 74080449 = 26342^2 + 8607^2 .

It is a cyclic number.

It is not a de Polignac number, because 767981413 - 2¹ = 767981411 is a prime.

Together with 767981411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (767981411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383990706 + 383990707.

It is an arithmetic number, because the mean of its divisors is an integer number (383990707).

Almost surely, 2^767981413 is an apocalyptic number.

It is an amenable number.

767981413 is a deficient number, since it is larger than the sum of its proper divisors (1).

767981413 is an equidigital number, since it uses as much as digits as its factorization.

767981413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 46.

The square root of 767981413 is about 27712.4775687776. The cubic root of 767981413 is about 915.7640062040.

The spelling of 767981413 in words is "seven hundred sixty-seven million, nine hundred eighty-one thousand, four hundred thirteen".