662607543 has 8 divisors (see below), whose sum is σ = 951436528. Its totient is φ = 407758464.

The previous prime is 662607527. The next prime is 662607553. The reversal of 662607543 is 345706266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 662607543 - 2⁴ = 662607527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 16989937 = 662607543 / (6 + 6 + 2 + 6 + 0 + 7 + 5 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662607503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8494930 + ... + 8495007.

It is an arithmetic number, because the mean of its divisors is an integer number (118929566).

Almost surely, 2^662607543 is an apocalyptic number.

662607543 is a deficient number, since it is larger than the sum of its proper divisors (288828985).

662607543 is a wasteful number, since it uses less digits than its factorization.

662607543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16989953.

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 662607543 is about 25741.1643676039. The cubic root of 662607543 is about 871.8038685613.

The spelling of 662607543 in words is "six hundred sixty-two million, six hundred seven thousand, five hundred forty-three".