4162921 has 8 divisors (see below), whose sum is σ = 4921920. Its totient is φ = 3445008.

The previous prime is 4162913. The next prime is 4162927. The reversal of 4162921 is 1292614.

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

It is not a de Polignac number, because 4162921 - 2³ = 4162913 is a prime.

It is a super-2 number, since 2×4162921² = 34659822504482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4162927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10051 + ... + 10456.

It is an arithmetic number, because the mean of its divisors is an integer number (615240).

Almost surely, 2^4162921 is an apocalyptic number.

It is an amenable number.

4162921 is a deficient number, since it is larger than the sum of its proper divisors (758999).

4162921 is a wasteful number, since it uses less digits than its factorization.

4162921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20543.

The product of its digits is 864, while the sum is 25.

The square root of 4162921 is about 2040.3237488203. The cubic root of 4162921 is about 160.8666642928.

The spelling of 4162921 in words is "four million, one hundred sixty-two thousand, nine hundred twenty-one".