662951797 has 2 divisors, whose sum is σ = 662951798. Its totient is φ = 662951796.

The previous prime is 662951767. The next prime is 662951813. The reversal of 662951797 is 797159266.

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., 614593681 + 48358116 = 24791^2 + 6954^2 .

It is a cyclic number.

It is not a de Polignac number, because 662951797 - 2¹⁹ = 662427509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662951767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331475898 + 331475899.

It is an arithmetic number, because the mean of its divisors is an integer number (331475899).

Almost surely, 2^662951797 is an apocalyptic number.

It is an amenable number.

662951797 is a deficient number, since it is larger than the sum of its proper divisors (1).

662951797 is an equidigital number, since it uses as much as digits as its factorization.

662951797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 52.

The square root of 662951797 is about 25747.8503374554. The cubic root of 662951797 is about 871.9548226777.

The spelling of 662951797 in words is "six hundred sixty-two million, nine hundred fifty-one thousand, seven hundred ninety-seven".