47776665 has 8 divisors (see below), whose sum is σ = 76442688. Its totient is φ = 25480880.

The previous prime is 47776661. The next prime is 47776667. The reversal of 47776665 is 56667774.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47776665 - 2² = 47776661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47776661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592541 + ... + 1592570.

It is an arithmetic number, because the mean of its divisors is an integer number (9555336).

Almost surely, 2^47776665 is an apocalyptic number.

It is an amenable number.

47776665 is a deficient number, since it is larger than the sum of its proper divisors (28666023).

47776665 is a wasteful number, since it uses less digits than its factorization.

47776665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185119.

The product of its digits is 1481760, while the sum is 48.

The square root of 47776665 is about 6912.0666229428. The cubic root of 47776665 is about 362.8595940229.

The spelling of 47776665 in words is "forty-seven million, seven hundred seventy-six thousand, six hundred sixty-five".