662374721 has 8 divisors (see below), whose sum is σ = 679684488. Its totient is φ = 645120000.

The previous prime is 662374711. The next prime is 662374729. The reversal of 662374721 is 127473266.

It can be written as a sum of positive squares in 4 ways, for example, as 122323600 + 540051121 = 11060^2 + 23239^2 .

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 662374721 - 2¹⁴ = 662358337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662374729) 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, 11201 + ... + 38081.

It is an arithmetic number, because the mean of its divisors is an integer number (84960561).

Almost surely, 2^662374721 is an apocalyptic number.

It is an amenable number.

662374721 is a deficient number, since it is larger than the sum of its proper divisors (17309767).

662374721 is a wasteful number, since it uses less digits than its factorization.

662374721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27523.

The product of its digits is 84672, while the sum is 38.

The square root of 662374721 is about 25736.6416029753. The cubic root of 662374721 is about 871.7017473282.

The spelling of 662374721 in words is "six hundred sixty-two million, three hundred seventy-four thousand, seven hundred twenty-one".