662981745 has 8 divisors (see below), whose sum is σ = 1060770816. Its totient is φ = 353590256.

The previous prime is 662981743. The next prime is 662981747. The reversal of 662981745 is 547189266.

It is an interprime number because it is at equal distance from previous prime (662981743) and next prime (662981747).

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 662981745 - 2¹ = 662981743 is a prime.

It is a super-4 number, since 4×662981745⁴ (a number of 36 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 662981694 and 662981703.

It is not an unprimeable number, because it can be changed into a prime (662981743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22099377 + ... + 22099406.

It is an arithmetic number, because the mean of its divisors is an integer number (132596352).

Almost surely, 2^662981745 is an apocalyptic number.

It is an amenable number.

662981745 is a deficient number, since it is larger than the sum of its proper divisors (397789071).

662981745 is a wasteful number, since it uses less digits than its factorization.

662981745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44198791.

The product of its digits is 725760, while the sum is 48.

The square root of 662981745 is about 25748.4318940008. The cubic root of 662981745 is about 871.9679522948.

The spelling of 662981745 in words is "six hundred sixty-two million, nine hundred eighty-one thousand, seven hundred forty-five".