800003172 has 12 divisors (see below), whose sum is σ = 1866674096. Its totient is φ = 266667720.

The previous prime is 800003137. The next prime is 800003173. The reversal of 800003172 is 271300008.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×800003172³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (800003173) 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, 33333454 + ... + 33333477.

Almost surely, 2^800003172 is an apocalyptic number.

It is an amenable number.

800003172 is an abundant number, since it is smaller than the sum of its proper divisors (1066670924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

800003172 is a wasteful number, since it uses less digits than its factorization.

800003172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66666938 (or 66666936 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 800003172 is about 28284.3273209741. The cubic root of 800003172 is about 928.3189936476.

The spelling of 800003172 in words is "eight hundred million, three thousand, one hundred seventy-two".