662534641 has 8 divisors (see below), whose sum is σ = 673331624. Its totient is φ = 651784320.

The previous prime is 662534633. The next prime is 662534647. The reversal of 662534641 is 146435266.

It can be written as a sum of positive squares in 4 ways, for example, as 327791025 + 334743616 = 18105^2 + 18296^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 662534641 - 2³ = 662534633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 662534641.

It is not an unprimeable number, because it can be changed into a prime (662534647) 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, 17551 + ... + 40411.

It is an arithmetic number, because the mean of its divisors is an integer number (84166453).

Almost surely, 2^662534641 is an apocalyptic number.

It is an amenable number.

662534641 is a deficient number, since it is larger than the sum of its proper divisors (10796983).

662534641 is a wasteful number, since it uses less digits than its factorization.

662534641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23331.

The product of its digits is 103680, while the sum is 37.

The square root of 662534641 is about 25739.7482699423. The cubic root of 662534641 is about 871.7718945936.

The spelling of 662534641 in words is "six hundred sixty-two million, five hundred thirty-four thousand, six hundred forty-one".