664074357 has 16 divisors (see below), whose sum is σ = 899828160. Its totient is φ = 435549312.

The previous prime is 664074287. The next prime is 664074401. The reversal of 664074357 is 753470466.

It is a happy number.

It is not a de Polignac number, because 664074357 - 2¹² = 664070261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664074457) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 88143 + ... + 95379.

It is an arithmetic number, because the mean of its divisors is an integer number (56239260).

Almost surely, 2^664074357 is an apocalyptic number.

It is an amenable number.

664074357 is a deficient number, since it is larger than the sum of its proper divisors (235753803).

664074357 is a wasteful number, since it uses less digits than its factorization.

664074357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7732.

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 664074357 is about 25769.6402186759. The cubic root of 664074357 is about 872.4466983856.

The spelling of 664074357 in words is "six hundred sixty-four million, seventy-four thousand, three hundred fifty-seven".