49291609 has 4 divisors (see below), whose sum is σ = 50127120. Its totient is φ = 48456100.

The previous prime is 49291607. The next prime is 49291633. The reversal of 49291609 is 90619294.

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 49291609 - 2¹ = 49291607 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49291607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417667 + ... + 417784.

It is an arithmetic number, because the mean of its divisors is an integer number (12531780).

Almost surely, 2^49291609 is an apocalyptic number.

It is an amenable number.

49291609 is a deficient number, since it is larger than the sum of its proper divisors (835511).

49291609 is an equidigital number, since it uses as much as digits as its factorization.

49291609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835510.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 49291609 is about 7020.7983164310. The cubic root of 49291609 is about 366.6550449025.

The spelling of 49291609 in words is "forty-nine million, two hundred ninety-one thousand, six hundred nine".