49475689 has 4 divisors (see below), whose sum is σ = 50314320. Its totient is φ = 48637060.

The previous prime is 49475683. The next prime is 49475693. The reversal of 49475689 is 98657494.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-49475689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49475683) 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, 419227 + ... + 419344.

It is an arithmetic number, because the mean of its divisors is an integer number (12578580).

Almost surely, 2^49475689 is an apocalyptic number.

It is an amenable number.

49475689 is a deficient number, since it is larger than the sum of its proper divisors (838631).

49475689 is an equidigital number, since it uses as much as digits as its factorization.

49475689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838630.

The product of its digits is 2177280, while the sum is 52.

The square root of 49475689 is about 7033.8957200118. The cubic root of 49475689 is about 367.1109035303.

Adding to 49475689 its product of digits (2177280), we get a square (51652969 = 7187²).

The spelling of 49475689 in words is "forty-nine million, four hundred seventy-five thousand, six hundred eighty-nine".