1240699 has 2 divisors, whose sum is σ = 1240700. Its totient is φ = 1240698.

The previous prime is 1240691. The next prime is 1240703. The reversal of 1240699 is 9960421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1240699 - 2³ = 1240691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1240699.

It is not a weakly prime, because it can be changed into another prime (1240691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620349 + 620350.

It is an arithmetic number, because the mean of its divisors is an integer number (620350).

2^1240699 is an apocalyptic number.

1240699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240699 is an equidigital number, since it uses as much as digits as its factorization.

1240699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1240699 is about 1113.8666886122. The cubic root of 1240699 is about 107.4538904470.

The spelling of 1240699 in words is "one million, two hundred forty thousand, six hundred ninety-nine".