172669627 has 4 divisors (see below), whose sum is σ = 185951920. Its totient is φ = 159387336.

The previous prime is 172669621. The next prime is 172669643. The reversal of 172669627 is 726966271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 726966271 = 1847 ⋅393593.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172669627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172669621) 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, 6641127 + ... + 6641152.

It is an arithmetic number, because the mean of its divisors is an integer number (46487980).

Almost surely, 2^172669627 is an apocalyptic number.

172669627 is a deficient number, since it is larger than the sum of its proper divisors (13282293).

172669627 is a wasteful number, since it uses less digits than its factorization.

172669627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13282292.

The product of its digits is 381024, while the sum is 46.

The square root of 172669627 is about 13140.3815393618. The cubic root of 172669627 is about 556.8505465818.

The spelling of 172669627 in words is "one hundred seventy-two million, six hundred sixty-nine thousand, six hundred twenty-seven".