4172656 has 10 divisors (see below), whose sum is σ = 8084552. Its totient is φ = 2086320.

The previous prime is 4172653. The next prime is 4172681. The reversal of 4172656 is 6562714.

It is a happy number.

It is a super-2 number, since 2×4172656² = 34822116188672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4172653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130380 + ... + 130411.

Almost surely, 2^4172656 is an apocalyptic number.

It is an amenable number.

4172656 is a deficient number, since it is larger than the sum of its proper divisors (3911896).

4172656 is a wasteful number, since it uses less digits than its factorization.

4172656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260799 (or 260793 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 4172656 is about 2042.7080065443. The cubic root of 4172656 is about 160.9919623574.

The spelling of 4172656 in words is "four million, one hundred seventy-two thousand, six hundred fifty-six".