662715073 has 2 divisors, whose sum is σ = 662715074. Its totient is φ = 662715072.

The previous prime is 662715071. The next prime is 662715091. The reversal of 662715073 is 370517266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 654745744 + 7969329 = 25588^2 + 2823^2 .

It is a cyclic number.

It is not a de Polignac number, because 662715073 - 2¹ = 662715071 is a prime.

Together with 662715071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (662715071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331357536 + 331357537.

It is an arithmetic number, because the mean of its divisors is an integer number (331357537).

Almost surely, 2^662715073 is an apocalyptic number.

It is an amenable number.

662715073 is a deficient number, since it is larger than the sum of its proper divisors (1).

662715073 is an equidigital number, since it uses as much as digits as its factorization.

662715073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 662715073 is about 25743.2529607274. The cubic root of 662715073 is about 871.8510256859.

The spelling of 662715073 in words is "six hundred sixty-two million, seven hundred fifteen thousand, seventy-three".