662061493 has 2 divisors, whose sum is σ = 662061494. Its totient is φ = 662061492.

The previous prime is 662061469. The next prime is 662061523. The reversal of 662061493 is 394160266.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 381733444 + 280328049 = 19538^2 + 16743^2 .

It is a cyclic number.

It is not a de Polignac number, because 662061493 - 2²⁹ = 125190581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662067493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331030746 + 331030747.

It is an arithmetic number, because the mean of its divisors is an integer number (331030747).

Almost surely, 2^662061493 is an apocalyptic number.

It is an amenable number.

662061493 is a deficient number, since it is larger than the sum of its proper divisors (1).

662061493 is an equidigital number, since it uses as much as digits as its factorization.

662061493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 662061493 is about 25730.5556294457. Note that the first 3 decimals coincide. The cubic root of 662061493 is about 871.5643203619.

The spelling of 662061493 in words is "six hundred sixty-two million, sixty-one thousand, four hundred ninety-three".