662606173 has 4 divisors (see below), whose sum is σ = 663249888. Its totient is φ = 661962460.

The previous prime is 662606143. The next prime is 662606177. The reversal of 662606173 is 371606266.

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.

It is a cyclic number.

It is not a de Polignac number, because 662606173 - 2⁹ = 662605661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662606177) 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, 320311 + ... + 322372.

It is an arithmetic number, because the mean of its divisors is an integer number (165812472).

Almost surely, 2^662606173 is an apocalyptic number.

It is an amenable number.

662606173 is a deficient number, since it is larger than the sum of its proper divisors (643715).

662606173 is a wasteful number, since it uses less digits than its factorization.

662606173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643714.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 662606173 is about 25741.1377565173. The cubic root of 662606173 is about 871.8032677169.

The spelling of 662606173 in words is "six hundred sixty-two million, six hundred six thousand, one hundred seventy-three".