173497420 has 24 divisors (see below), whose sum is σ = 370320048. Its totient is φ = 68260800.

The previous prime is 173497327. The next prime is 173497439. The reversal of 173497420 is 24794371.

173497420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 173497420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69886 + ... + 72325.

It is an arithmetic number, because the mean of its divisors is an integer number (15430002).

Almost surely, 2^173497420 is an apocalyptic number.

173497420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

173497420 is an abundant number, since it is smaller than the sum of its proper divisors (196822628).

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

173497420 is a wasteful number, since it uses less digits than its factorization.

173497420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142281 (or 142279 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 173497420 is about 13171.8419364947. The cubic root of 173497420 is about 557.7389914224.

The spelling of 173497420 in words is "one hundred seventy-three million, four hundred ninety-seven thousand, four hundred twenty".