662947 has 2 divisors, whose sum is σ = 662948.
Its totient is φ = 662946.
The previous prime is 662941. The next prime is 662951. The reversal of 662947 is 749266.
662947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 662947 - 23 = 662939 is a prime.
It is not a weakly prime, because it can be changed into another prime (662941) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331473 + 331474.
It is an arithmetic number, because the mean of its divisors is an integer number (331474).
2662947 is an apocalyptic number.
662947 is a deficient number, since it is larger than the sum of its proper divisors (1).
662947 is an equidigital number, since it uses as much as digits as its factorization.
662947 is an evil number, because the sum of its binary digits is even.
The product of its digits is 18144, while the sum is 34.
The square root of 662947 is about 814.2155734202.
The cubic root of 662947 is about 87.1952719570.
The spelling of 662947 in words is "six hundred sixty-two thousand, nine hundred forty-seven".