47820169 has 8 divisors (see below), whose sum is σ = 51698240. Its totient is φ = 44078256.

The previous prime is 47820163. The next prime is 47820181. The reversal of 47820169 is 96102874.

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 47820169 - 2¹³ = 47811977 is a prime.

It is a super-2 number, since 2×47820169² = 4573537126377122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (47820163) 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, 33309 + ... + 34714.

It is an arithmetic number, because the mean of its divisors is an integer number (6462280).

Almost surely, 2^47820169 is an apocalyptic number.

47820169 is the 3993-rd hex number.

It is an amenable number.

47820169 is a deficient number, since it is larger than the sum of its proper divisors (3878071).

47820169 is a wasteful number, since it uses less digits than its factorization.

47820169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68079.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 47820169 is about 6915.2128672948. The cubic root of 47820169 is about 362.9696969698.

The spelling of 47820169 in words is "forty-seven million, eight hundred twenty thousand, one hundred sixty-nine".