13740777 has 12 divisors (see below), whose sum is σ = 21015540. Its totient is φ = 8621568.

The previous prime is 13740763. The next prime is 13740787. The reversal of 13740777 is 77704731.

It can be written as a sum of positive squares in 2 ways, for example, as 11861136 + 1879641 = 3444^2 + 1371^2 .

It is not a de Polignac number, because 13740777 - 2⁴ = 13740761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13740757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44752 + ... + 45057.

It is an arithmetic number, because the mean of its divisors is an integer number (1751295).

Almost surely, 2^13740777 is an apocalyptic number.

13740777 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13740777 is a deficient number, since it is larger than the sum of its proper divisors (7274763).

13740777 is a wasteful number, since it uses less digits than its factorization.

13740777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89832 (or 89829 counting only the distinct ones).

The product of its (nonzero) digits is 28812, while the sum is 36.

The square root of 13740777 is about 3706.8554058663. The cubic root of 13740777 is about 239.5174157020.

The spelling of 13740777 in words is "thirteen million, seven hundred forty thousand, seven hundred seventy-seven".