47763665 has 4 divisors (see below), whose sum is σ = 57316404. Its totient is φ = 38210928.

The previous prime is 47763649. The next prime is 47763679. The reversal of 47763665 is 56636774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56636774 = 2 ⋅28318387.

It can be written as a sum of positive squares in 2 ways, for example, as 14227984 + 33535681 = 3772^2 + 5791^2 .

It is a cyclic number.

It is not a de Polignac number, because 47763665 - 2⁴ = 47763649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4776362 + ... + 4776371.

It is an arithmetic number, because the mean of its divisors is an integer number (14329101).

Almost surely, 2^47763665 is an apocalyptic number.

It is an amenable number.

47763665 is a deficient number, since it is larger than the sum of its proper divisors (9552739).

47763665 is an equidigital number, since it uses as much as digits as its factorization.

47763665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9552738.

The product of its digits is 635040, while the sum is 44.

The square root of 47763665 is about 6911.1261745102. The cubic root of 47763665 is about 362.8266797495.

The spelling of 47763665 in words is "forty-seven million, seven hundred sixty-three thousand, six hundred sixty-five".