172295427 has 16 divisors (see below), whose sum is σ = 237984768. Its totient is φ = 110761440.

The previous prime is 172295423. The next prime is 172295443. The reversal of 172295427 is 724592271.

It is not a de Polignac number, because 172295427 - 2² = 172295423 is a prime.

It is a super-2 number, since 2×172295427² = 59371428330224658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172295423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24088 + ... + 30410.

It is an arithmetic number, because the mean of its divisors is an integer number (14874048).

Almost surely, 2^172295427 is an apocalyptic number.

172295427 is a deficient number, since it is larger than the sum of its proper divisors (65689341).

172295427 is a wasteful number, since it uses less digits than its factorization.

172295427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6650.

The product of its digits is 70560, while the sum is 39.

The square root of 172295427 is about 13126.1352651875. The cubic root of 172295427 is about 556.4479971491.

The spelling of 172295427 in words is "one hundred seventy-two million, two hundred ninety-five thousand, four hundred twenty-seven".