47782469 has 4 divisors (see below), whose sum is σ = 54608544. Its totient is φ = 40956396.

The previous prime is 47782451. The next prime is 47782481. The reversal of 47782469 is 96428774.

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 47782469 - 2⁸ = 47782213 is a prime.

It is a super-2 number, since 2×47782469² = 4566328687471922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47782489) 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, 3413027 + ... + 3413040.

It is an arithmetic number, because the mean of its divisors is an integer number (13652136).

Almost surely, 2^47782469 is an apocalyptic number.

It is an amenable number.

47782469 is a deficient number, since it is larger than the sum of its proper divisors (6826075).

47782469 is an equidigital number, since it uses as much as digits as its factorization.

47782469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6826074.

The product of its digits is 677376, while the sum is 47.

The square root of 47782469 is about 6912.4864556829. The cubic root of 47782469 is about 362.8742870521.

The spelling of 47782469 in words is "forty-seven million, seven hundred eighty-two thousand, four hundred sixty-nine".