2420639699 has 2 divisors, whose sum is σ = 2420639700. Its totient is φ = 2420639698.

The previous prime is 2420639687. The next prime is 2420639723. The reversal of 2420639699 is 9969360242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2420639699 - 2⁸ = 2420639443 is a prime.

It is not a weakly prime, because it can be changed into another prime (2420639099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210319849 + 1210319850.

It is an arithmetic number, because the mean of its divisors is an integer number (1210319850).

Almost surely, 2^2420639699 is an apocalyptic number.

2420639699 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420639699 is an equidigital number, since it uses as much as digits as its factorization.

2420639699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The square root of 2420639699 is about 49199.9969410568. The cubic root of 2420639699 is about 1342.6929765236.

The spelling of 2420639699 in words is "two billion, four hundred twenty million, six hundred thirty-nine thousand, six hundred ninety-nine".