662496089 has 2 divisors, whose sum is σ = 662496090. Its totient is φ = 662496088.

The previous prime is 662496083. The next prime is 662496091. The reversal of 662496089 is 980694266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 562496089 + 100000000 = 23717^2 + 10000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-662496089 is a prime.

Together with 662496091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (662496083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331248044 + 331248045.

It is an arithmetic number, because the mean of its divisors is an integer number (331248045).

Almost surely, 2^662496089 is an apocalyptic number.

It is an amenable number.

662496089 is a deficient number, since it is larger than the sum of its proper divisors (1).

662496089 is an equidigital number, since it uses as much as digits as its factorization.

662496089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 662496089 is about 25738.9993783752. Note that the first 3 decimals coincide. The cubic root of 662496089 is about 871.7549851874.

The spelling of 662496089 in words is "six hundred sixty-two million, four hundred ninety-six thousand, eighty-nine".