662861593 has 4 divisors (see below), whose sum is σ = 664864528. Its totient is φ = 660858660.

The previous prime is 662861581. The next prime is 662861597. The reversal of 662861593 is 395168266.

662861593 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 395168266 = 2 ⋅197584133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-662861593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662861597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000971 + ... + 1001632.

It is an arithmetic number, because the mean of its divisors is an integer number (166216132).

Almost surely, 2^662861593 is an apocalyptic number.

It is an amenable number.

662861593 is a deficient number, since it is larger than the sum of its proper divisors (2002935).

662861593 is a wasteful number, since it uses less digits than its factorization.

662861593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002934.

The product of its digits is 466560, while the sum is 46.

The square root of 662861593 is about 25746.0985976516. The cubic root of 662861593 is about 871.9152736080.

The spelling of 662861593 in words is "six hundred sixty-two million, eight hundred sixty-one thousand, five hundred ninety-three".