786540049 has 2 divisors, whose sum is σ = 786540050. Its totient is φ = 786540048.

The previous prime is 786540011. The next prime is 786540077. The reversal of 786540049 is 940045687.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 716097600 + 70442449 = 26760^2 + 8393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-786540049 is a prime.

It is a super-3 number, since 3×786540049³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 786539987 and 786540014.

It is not a weakly prime, because it can be changed into another prime (786540149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393270024 + 393270025.

It is an arithmetic number, because the mean of its divisors is an integer number (393270025).

Almost surely, 2^786540049 is an apocalyptic number.

It is an amenable number.

786540049 is a deficient number, since it is larger than the sum of its proper divisors (1).

786540049 is an equidigital number, since it uses as much as digits as its factorization.

786540049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 786540049 is about 28045.3213388615. The cubic root of 786540049 is about 923.0819956368.

The spelling of 786540049 in words is "seven hundred eighty-six million, five hundred forty thousand, forty-nine".