437641 has 2 divisors, whose sum is σ = 437642. Its totient is φ = 437640.

The previous prime is 437629. The next prime is 437651. The reversal of 437641 is 146734.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335241 + 102400 = 579^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 437641 - 2¹¹ = 435593 is a prime.

It is not a weakly prime, because it can be changed into another prime (437651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218820 + 218821.

It is an arithmetic number, because the mean of its divisors is an integer number (218821).

2⁴³⁷⁶⁴¹ is an apocalyptic number.

It is an amenable number.

437641 is a deficient number, since it is larger than the sum of its proper divisors (1).

437641 is an equidigital number, since it uses as much as digits as its factorization.

437641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 25.

The square root of 437641 is about 661.5444051611. The cubic root of 437641 is about 75.9228788313.

The spelling of 437641 in words is "four hundred thirty-seven thousand, six hundred forty-one".