2420779 has 2 divisors, whose sum is σ = 2420780. Its totient is φ = 2420778.

The previous prime is 2420767. The next prime is 2420801. The reversal of 2420779 is 9770242.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2420779 is a prime.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 2420779.

It is not a weakly prime, because it can be changed into another prime (2420179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210389 + 1210390.

It is an arithmetic number, because the mean of its divisors is an integer number (1210390).

2^2420779 is an apocalyptic number.

2420779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420779 is an equidigital number, since it uses as much as digits as its factorization.

2420779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 2420779 is about 1555.8852785472. The cubic root of 2420779 is about 134.2718732097.

The spelling of 2420779 in words is "two million, four hundred twenty thousand, seven hundred seventy-nine".