662164729 has 4 divisors (see below), whose sum is σ = 673387920. Its totient is φ = 650941540.

The previous prime is 662164663. The next prime is 662164753. The reversal of 662164729 is 927461266.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 927461266 = 2 ⋅463730633.

It is a cyclic number.

It is not a de Polignac number, because 662164729 - 2¹⁵ = 662131961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662164759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5611507 + ... + 5611624.

It is an arithmetic number, because the mean of its divisors is an integer number (168346980).

Almost surely, 2^662164729 is an apocalyptic number.

It is an amenable number.

662164729 is a deficient number, since it is larger than the sum of its proper divisors (11223191).

662164729 is a wasteful number, since it uses less digits than its factorization.

662164729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11223190.

The product of its digits is 217728, while the sum is 43.

The square root of 662164729 is about 25732.5616486194. The cubic root of 662164729 is about 871.6096193453.

The spelling of 662164729 in words is "six hundred sixty-two million, one hundred sixty-four thousand, seven hundred twenty-nine".