172872862 has 8 divisors (see below), whose sum is σ = 264826656. Its totient is φ = 84597312.

The previous prime is 172872839. The next prime is 172872863. The reversal of 172872862 is 268278271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172872863) 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, 919443 + ... + 919630.

It is an arithmetic number, because the mean of its divisors is an integer number (33103332).

Almost surely, 2^172872862 is an apocalyptic number.

172872862 is a deficient number, since it is larger than the sum of its proper divisors (91953794).

172872862 is a wasteful number, since it uses less digits than its factorization.

172872862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839122.

The product of its digits is 150528, while the sum is 43.

The square root of 172872862 is about 13148.1124881102. The cubic root of 172872862 is about 557.0689350157.

The spelling of 172872862 in words is "one hundred seventy-two million, eight hundred seventy-two thousand, eight hundred sixty-two".