662042393 has 4 divisors (see below), whose sum is σ = 662426148. Its totient is φ = 661658640.

The previous prime is 662042383. The next prime is 662042401. The reversal of 662042393 is 393240266.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 309654409 + 352387984 = 17597^2 + 18772^2 .

It is a cyclic number.

It is not a de Polignac number, because 662042393 - 2¹⁴ = 662026009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662042323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189278 + ... + 192743.

It is an arithmetic number, because the mean of its divisors is an integer number (165606537).

Almost surely, 2^662042393 is an apocalyptic number.

It is an amenable number.

662042393 is a deficient number, since it is larger than the sum of its proper divisors (383755).

662042393 is a wasteful number, since it uses less digits than its factorization.

662042393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383754.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 662042393 is about 25730.1844727161. The cubic root of 662042393 is about 871.5559389457. Note that the first 3 decimals are identical.

The spelling of 662042393 in words is "six hundred sixty-two million, forty-two thousand, three hundred ninety-three".