664753058 has 8 divisors (see below), whose sum is σ = 998613228. Its totient is φ = 331881984.

The previous prime is 664753043. The next prime is 664753073. The reversal of 664753058 is 850357466.

It is an interprime number because it is at equal distance from previous prime (664753043) and next prime (664753073).

It can be written as a sum of positive squares in 2 ways, for example, as 659102929 + 5650129 = 25673^2 + 2377^2 .

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

It is a super-3 number, since 3×664753058³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245591 + ... + 248282.

Almost surely, 2^664753058 is an apocalyptic number.

664753058 is a deficient number, since it is larger than the sum of its proper divisors (333860170).

664753058 is a wasteful number, since it uses less digits than its factorization.

664753058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494548.

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 664753058 is about 25782.8054718644. The cubic root of 664753058 is about 872.7438181437.

The spelling of 664753058 in words is "six hundred sixty-four million, seven hundred fifty-three thousand, fifty-eight".