47863661 has 8 divisors (see below), whose sum is σ = 48772320. Its totient is φ = 46960848.

The previous prime is 47863649. The next prime is 47863709. The reversal of 47863661 is 16636874.

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

It is a cyclic number.

It is not a de Polignac number, because 47863661 - 2¹⁰ = 47862637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47863861) 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, 17270 + ... + 19848.

It is an arithmetic number, because the mean of its divisors is an integer number (6096540).

Almost surely, 2^47863661 is an apocalyptic number.

It is an amenable number.

47863661 is a deficient number, since it is larger than the sum of its proper divisors (908659).

47863661 is a wasteful number, since it uses less digits than its factorization.

47863661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923.

The product of its digits is 145152, while the sum is 41.

The square root of 47863661 is about 6918.3568135794. The cubic root of 47863661 is about 363.0797028172.

The spelling of 47863661 in words is "forty-seven million, eight hundred sixty-three thousand, six hundred sixty-one".