47621867 has 4 divisors (see below), whose sum is σ = 47666376. Its totient is φ = 47577360.

The previous prime is 47621851. The next prime is 47621897. The reversal of 47621867 is 76812674.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47621867 - 2⁴ = 47621851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47621897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20609 + ... + 22802.

It is an arithmetic number, because the mean of its divisors is an integer number (11916594).

Almost surely, 2^47621867 is an apocalyptic number.

47621867 is a deficient number, since it is larger than the sum of its proper divisors (44509).

47621867 is a wasteful number, since it uses less digits than its factorization.

47621867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44508.

The product of its digits is 112896, while the sum is 41.

The square root of 47621867 is about 6900.8598739577. The cubic root of 47621867 is about 362.4672775853.

The spelling of 47621867 in words is "forty-seven million, six hundred twenty-one thousand, eight hundred sixty-seven".