4380997 has 4 divisors (see below), whose sum is σ = 4393900. Its totient is φ = 4368096.

The previous prime is 4380991. The next prime is 4381007. The reversal of 4380997 is 7990834.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4004001 + 376996 = 2001^2 + 614^2 .

It is a cyclic number.

It is not a de Polignac number, because 4380997 - 2¹⁵ = 4348229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4380991) 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, 5928 + ... + 6625.

It is an arithmetic number, because the mean of its divisors is an integer number (1098475).

Almost surely, 2^4380997 is an apocalyptic number.

It is an amenable number.

4380997 is a deficient number, since it is larger than the sum of its proper divisors (12903).

4380997 is a wasteful number, since it uses less digits than its factorization.

4380997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12902.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 4380997 is about 2093.0831326061. The cubic root of 4380997 is about 163.6280112366.

The spelling of 4380997 in words is "four million, three hundred eighty thousand, nine hundred ninety-seven".