1240777 has 2 divisors, whose sum is σ = 1240778. Its totient is φ = 1240776.

The previous prime is 1240769. The next prime is 1240793. The reversal of 1240777 is 7770421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 687241 + 553536 = 829^2 + 744^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240777 - 2³ = 1240769 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1240717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620388 + 620389.

It is an arithmetic number, because the mean of its divisors is an integer number (620389).

2^1240777 is an apocalyptic number.

It is an amenable number.

1240777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240777 is an equidigital number, since it uses as much as digits as its factorization.

1240777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 1240777 is about 1113.9017012286. The cubic root of 1240777 is about 107.4561421959.

The spelling of 1240777 in words is "one million, two hundred forty thousand, seven hundred seventy-seven".