768472477 has 2 divisors, whose sum is σ = 768472478. Its totient is φ = 768472476.

The previous prime is 768472469. The next prime is 768472483. The reversal of 768472477 is 774274867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 764743716 + 3728761 = 27654^2 + 1931^2 .

It is an emirp because it is prime and its reverse (774274867) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 768472477 - 2³ = 768472469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768472427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384236238 + 384236239.

It is an arithmetic number, because the mean of its divisors is an integer number (384236239).

Almost surely, 2^768472477 is an apocalyptic number.

It is an amenable number.

768472477 is a deficient number, since it is larger than the sum of its proper divisors (1).

768472477 is an equidigital number, since it uses as much as digits as its factorization.

768472477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3687936, while the sum is 52.

The square root of 768472477 is about 27721.3361330222. The cubic root of 768472477 is about 915.9591510835.

The spelling of 768472477 in words is "seven hundred sixty-eight million, four hundred seventy-two thousand, four hundred seventy-seven".