4181957 has 8 divisors (see below), whose sum is σ = 4740960. Its totient is φ = 3656880.

The previous prime is 4181953. The next prime is 4181981. The reversal of 4181957 is 7591814.

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

It is a cyclic number.

It is not a de Polignac number, because 4181957 - 2² = 4181953 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4181953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8219 + ... + 8712.

It is an arithmetic number, because the mean of its divisors is an integer number (592620).

Almost surely, 2^4181957 is an apocalyptic number.

It is an amenable number.

4181957 is a deficient number, since it is larger than the sum of its proper divisors (559003).

4181957 is a wasteful number, since it uses less digits than its factorization.

4181957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16963.

The product of its digits is 10080, while the sum is 35.

The square root of 4181957 is about 2044.9833740155. The cubic root of 4181957 is about 161.1114925432. Note that the first 3 decimals are identical.

The spelling of 4181957 in words is "four million, one hundred eighty-one thousand, nine hundred fifty-seven".