4172906 has 8 divisors (see below), whose sum is σ = 6281604. Its totient is φ = 2079040.

The previous prime is 4172887. The next prime is 4172929. The reversal of 4172906 is 6092714.

It can be written as a sum of positive squares in 2 ways, for example, as 4165681 + 7225 = 2041^2 + 85^2 .

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2975 + ... + 4146.

Almost surely, 2^4172906 is an apocalyptic number.

4172906 is a deficient number, since it is larger than the sum of its proper divisors (2108698).

4172906 is a wasteful number, since it uses less digits than its factorization.

4172906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7416.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 4172906 is about 2042.7691989062. The cubic root of 4172906 is about 160.9951775107.

The spelling of 4172906 in words is "four million, one hundred seventy-two thousand, nine hundred six".