2608662997 has 2 divisors, whose sum is σ = 2608662998. Its totient is φ = 2608662996.

The previous prime is 2608662961. The next prime is 2608663003. The reversal of 2608662997 is 7992668062.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1437243921 + 1171419076 = 37911^2 + 34226^2 .

It is a cyclic number.

It is not a de Polignac number, because 2608662997 - 2¹¹ = 2608660949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2608662907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1304331498 + 1304331499.

It is an arithmetic number, because the mean of its divisors is an integer number (1304331499).

Almost surely, 2^2608662997 is an apocalyptic number.

It is an amenable number.

2608662997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2608662997 is an equidigital number, since it uses as much as digits as its factorization.

2608662997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The square root of 2608662997 is about 51075.0721683288. The cubic root of 2608662997 is about 1376.5943813963.

The spelling of 2608662997 in words is "two billion, six hundred eight million, six hundred sixty-two thousand, nine hundred ninety-seven".