4640369 has 2 divisors, whose sum is σ = 4640370. Its totient is φ = 4640368.

The previous prime is 4640329. The next prime is 4640387. The reversal of 4640369 is 9630464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4255969 + 384400 = 2063^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 4640369 - 2⁸ = 4640113 is a prime.

It is a super-2 number, since 2×4640369² = 43066048912322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4640329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320184 + 2320185.

It is an arithmetic number, because the mean of its divisors is an integer number (2320185).

Almost surely, 2^4640369 is an apocalyptic number.

It is an amenable number.

4640369 is a deficient number, since it is larger than the sum of its proper divisors (1).

4640369 is an equidigital number, since it uses as much as digits as its factorization.

4640369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 4640369 is about 2154.1515731257. The cubic root of 4640369 is about 166.7954395907.

The spelling of 4640369 in words is "four million, six hundred forty thousand, three hundred sixty-nine".