47670857 has 8 divisors (see below), whose sum is σ = 51433536. Its totient is φ = 43921872.

The previous prime is 47670853. The next prime is 47670859. The reversal of 47670857 is 75807674.

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 47670857 - 2² = 47670853 is a prime.

It is a super-2 number, since 2×47670857² = 4545021214228898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47670853) 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, 4508 + ... + 10754.

It is an arithmetic number, because the mean of its divisors is an integer number (6429192).

Almost surely, 2^47670857 is an apocalyptic number.

It is an amenable number.

47670857 is a deficient number, since it is larger than the sum of its proper divisors (3762679).

47670857 is a wasteful number, since it uses less digits than its factorization.

47670857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6847.

The product of its (nonzero) digits is 329280, while the sum is 44.

The square root of 47670857 is about 6904.4085191999. The cubic root of 47670857 is about 362.5915285327.

The spelling of 47670857 in words is "forty-seven million, six hundred seventy thousand, eight hundred fifty-seven".