662061469 has 2 divisors, whose sum is σ = 662061470. Its totient is φ = 662061468.

The previous prime is 662061467. The next prime is 662061493. The reversal of 662061469 is 964160266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 645820569 + 16240900 = 25413^2 + 4030^2 .

It is a cyclic number.

It is not a de Polignac number, because 662061469 - 2¹ = 662061467 is a prime.

It is a super-2 number, since 2×662061469² = 876650777468875922, which contains 22 as substring.

Together with 662061467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662061467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331030734 + 331030735.

It is an arithmetic number, because the mean of its divisors is an integer number (331030735).

Almost surely, 2^662061469 is an apocalyptic number.

It is an amenable number.

662061469 is a deficient number, since it is larger than the sum of its proper divisors (1).

662061469 is an equidigital number, since it uses as much as digits as its factorization.

662061469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 662061469 is about 25730.5551630741. Note that the first 3 decimals coincide. The cubic root of 662061469 is about 871.5643098303.

The spelling of 662061469 in words is "six hundred sixty-two million, sixty-one thousand, four hundred sixty-nine".