49787469 has 12 divisors (see below), whose sum is σ = 71991036. Its totient is φ = 33156672.

The previous prime is 49787453. The next prime is 49787477. The reversal of 49787469 is 96478794.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18818244 + 30969225 = 4338^2 + 5565^2 .

It is not a de Polignac number, because 49787469 - 2⁴ = 49787453 is a prime.

It is a super-2 number, since 2×49787469² = 4957584138851922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49787669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8419 + ... + 13055.

It is an arithmetic number, because the mean of its divisors is an integer number (5999253).

Almost surely, 2^49787469 is an apocalyptic number.

It is an amenable number.

49787469 is a deficient number, since it is larger than the sum of its proper divisors (22203567).

49787469 is a wasteful number, since it uses less digits than its factorization.

49787469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5836 (or 5833 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 49787469 is about 7056.0235968993. The cubic root of 49787469 is about 367.8804279332.

The spelling of 49787469 in words is "forty-nine million, seven hundred eighty-seven thousand, four hundred sixty-nine".