4648391 has 4 divisors (see below), whose sum is σ = 5070984. Its totient is φ = 4225800.

The previous prime is 4648387. The next prime is 4648403. The reversal of 4648391 is 1938464.

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

It is a cyclic number.

It is not a de Polignac number, because 4648391 - 2² = 4648387 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 (4648321) 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, 211280 + ... + 211301.

It is an arithmetic number, because the mean of its divisors is an integer number (1267746).

Almost surely, 2^4648391 is an apocalyptic number.

4648391 is a deficient number, since it is larger than the sum of its proper divisors (422593).

4648391 is a wasteful number, since it uses less digits than its factorization.

4648391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422592.

The product of its digits is 20736, while the sum is 35.

The square root of 4648391 is about 2156.0127550643. The cubic root of 4648391 is about 166.8914996754.

The spelling of 4648391 in words is "four million, six hundred forty-eight thousand, three hundred ninety-one".