4626409 has 4 divisors (see below), whose sum is σ = 4775680. Its totient is φ = 4477140.

The previous prime is 4626407. The next prime is 4626421. The reversal of 4626409 is 9046264.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4626409 - 2¹ = 4626407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 149239 = 4626409 / (4 + 6 + 2 + 6 + 4 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4626407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74589 + ... + 74650.

It is an arithmetic number, because the mean of its divisors is an integer number (1193920).

Almost surely, 2^4626409 is an apocalyptic number.

It is an amenable number.

4626409 is a deficient number, since it is larger than the sum of its proper divisors (149271).

4626409 is a wasteful number, since it uses less digits than its factorization.

4626409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149270.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 4626409 is about 2150.9088776608. The cubic root of 4626409 is about 166.6280101458.

The spelling of 4626409 in words is "four million, six hundred twenty-six thousand, four hundred nine".