2400020897 has 2 divisors, whose sum is σ = 2400020898. Its totient is φ = 2400020896.

The previous prime is 2400020893. The next prime is 2400020933. The reversal of 2400020897 is 7980200042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2307937681 + 92083216 = 48041^2 + 9596^2 .

It is a cyclic number.

It is not a de Polignac number, because 2400020897 - 2² = 2400020893 is a prime.

It is not a weakly prime, because it can be changed into another prime (2400020893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200010448 + 1200010449.

It is an arithmetic number, because the mean of its divisors is an integer number (1200010449).

Almost surely, 2^2400020897 is an apocalyptic number.

It is an amenable number.

2400020897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400020897 is an equidigital number, since it uses as much as digits as its factorization.

2400020897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2400020897 is about 48990.0081343124. The cubic root of 2400020897 is about 1338.8697860254.

The spelling of 2400020897 in words is "two billion, four hundred million, twenty thousand, eight hundred ninety-seven".