49494947 has 4 divisors (see below), whose sum is σ = 50051160. Its totient is φ = 48938736.

The previous prime is 49494917. The next prime is 49494953. The reversal of 49494947 is 74949494.

It is a happy number.

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 49494947 - 2⁸ = 49494691 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 49494895 and 49494904.

It is not an unprimeable number, because it can be changed into a prime (49494917) 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, 277973 + ... + 278150.

It is an arithmetic number, because the mean of its divisors is an integer number (12512790).

Almost surely, 2^49494947 is an apocalyptic number.

49494947 is a deficient number, since it is larger than the sum of its proper divisors (556213).

49494947 is an equidigital number, since it uses as much as digits as its factorization.

49494947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556212.

The product of its digits is 1306368, while the sum is 50.

The square root of 49494947 is about 7035.2645294971. The cubic root of 49494947 is about 367.1585289724.

The spelling of 49494947 in words is "forty-nine million, four hundred ninety-four thousand, nine hundred forty-seven".