4072641 has 4 divisors (see below), whose sum is σ = 5430192. Its totient is φ = 2715092.

The previous prime is 4072637. The next prime is 4072661. The reversal of 4072641 is 1462704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4072641 - 2² = 4072637 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4072661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678771 + ... + 678776.

It is an arithmetic number, because the mean of its divisors is an integer number (1357548).

Almost surely, 2^4072641 is an apocalyptic number.

It is an amenable number.

4072641 is a deficient number, since it is larger than the sum of its proper divisors (1357551).

4072641 is a wasteful number, since it uses less digits than its factorization.

4072641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357550.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 4072641 is about 2018.0785415836. The cubic root of 4072641 is about 159.6952663313.

The spelling of 4072641 in words is "four million, seventy-two thousand, six hundred forty-one".