77480911 has 2 divisors, whose sum is σ = 77480912. Its totient is φ = 77480910.

The previous prime is 77480903. The next prime is 77480929. The reversal of 77480911 is 11908477.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77480911 - 2³ = 77480903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77480311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38740455 + 38740456.

It is an arithmetic number, because the mean of its divisors is an integer number (38740456).

Almost surely, 2^77480911 is an apocalyptic number.

77480911 is a deficient number, since it is larger than the sum of its proper divisors (1).

77480911 is an equidigital number, since it uses as much as digits as its factorization.

77480911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 77480911 is about 8802.3241817147. The cubic root of 77480911 is about 426.3159415014.

The spelling of 77480911 in words is "seventy-seven million, four hundred eighty thousand, nine hundred eleven".