172248868 has 12 divisors (see below), whose sum is σ = 328838832. Its totient is φ = 78294920.

The previous prime is 172248859. The next prime is 172248877. The reversal of 172248868 is 868842271.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (172248859) and next prime (172248877).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1957330 + ... + 1957417.

It is an arithmetic number, because the mean of its divisors is an integer number (27403236).

Almost surely, 2^172248868 is an apocalyptic number.

It is an amenable number.

172248868 is a deficient number, since it is larger than the sum of its proper divisors (156589964).

172248868 is a wasteful number, since it uses less digits than its factorization.

172248868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914762 (or 3914760 counting only the distinct ones).

The product of its digits is 344064, while the sum is 46.

The square root of 172248868 is about 13124.3616225704. The cubic root of 172248868 is about 556.3978700762.

The spelling of 172248868 in words is "one hundred seventy-two million, two hundred forty-eight thousand, eight hundred sixty-eight".