4649391 has 6 divisors (see below), whose sum is σ = 6715800. Its totient is φ = 3099588.

The previous prime is 4649371. The next prime is 4649399. The reversal of 4649391 is 1939464.

4649391 is a `hidden beast` number, since 4 + 649 + 3 + 9 + 1 = 666.

It is not a de Polignac number, because 4649391 - 2⁹ = 4648879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4649399) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258291 + ... + 258308.

It is an arithmetic number, because the mean of its divisors is an integer number (1119300).

Almost surely, 2^4649391 is an apocalyptic number.

4649391 is a deficient number, since it is larger than the sum of its proper divisors (2066409).

4649391 is a wasteful number, since it uses less digits than its factorization.

4649391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516605 (or 516602 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 4649391 is about 2156.2446521673. The cubic root of 4649391 is about 166.9034665068.

The spelling of 4649391 in words is "four million, six hundred forty-nine thousand, three hundred ninety-one".