4376321 has 2 divisors, whose sum is σ = 4376322. Its totient is φ = 4376320.

The previous prime is 4376287. The next prime is 4376347. The reversal of 4376321 is 1236734.

It is an a-pointer prime, because the next prime (4376347) can be obtained adding 4376321 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2686321 + 1690000 = 1639^2 + 1300^2 .

It is a cyclic number.

It is not a de Polignac number, because 4376321 - 2¹⁴ = 4359937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4376221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2188160 + 2188161.

It is an arithmetic number, because the mean of its divisors is an integer number (2188161).

Almost surely, 2^4376321 is an apocalyptic number.

It is an amenable number.

4376321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4376321 is an equidigital number, since it uses as much as digits as its factorization.

4376321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 26.

The square root of 4376321 is about 2091.9658219005. The cubic root of 4376321 is about 163.5697751047.

The spelling of 4376321 in words is "four million, three hundred seventy-six thousand, three hundred twenty-one".