673172451 has 112 divisors (see below), whose sum is σ = 1246544640. Its totient is φ = 354818880.

The previous prime is 673172449. The next prime is 673172453. The reversal of 673172451 is 154271376.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (673172449) and next prime (673172453).

It is not a de Polignac number, because 673172451 - 2¹ = 673172449 is a prime.

It is a super-2 number, since 2×673172451² = 906322297570694802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673172453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 5138656 + ... + 5138786.

Almost surely, 2^673172451 is an apocalyptic number.

673172451 is a deficient number, since it is larger than the sum of its proper divisors (573372189).

673172451 is a wasteful number, since it uses less digits than its factorization.

673172451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 213 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 673172451 is about 25945.5670780193. The cubic root of 673172451 is about 876.4129339540.

The spelling of 673172451 in words is "six hundred seventy-three million, one hundred seventy-two thousand, four hundred fifty-one".