4320681 has 8 divisors (see below), whose sum is σ = 5959680. Its totient is φ = 2781072.

The previous prime is 4320643. The next prime is 4320689. The reversal of 4320681 is 1860234.

It is a happy number.

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

It is not a de Polignac number, because 4320681 - 2¹³ = 4312489 is a prime.

It is a super-2 number, since 2×4320681² = 37336568607522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4320689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24745 + ... + 24918.

It is an arithmetic number, because the mean of its divisors is an integer number (744960).

Almost surely, 2^4320681 is an apocalyptic number.

It is an amenable number.

4320681 is a deficient number, since it is larger than the sum of its proper divisors (1638999).

4320681 is a wasteful number, since it uses less digits than its factorization.

4320681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49695.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 4320681 is about 2078.6247857658. The cubic root of 4320681 is about 162.8736145016.

The spelling of 4320681 in words is "four million, three hundred twenty thousand, six hundred eighty-one".