47946421 has 8 divisors (see below), whose sum is σ = 50549184. Its totient is φ = 45386880.

The previous prime is 47946391. The next prime is 47946433. The reversal of 47946421 is 12464974.

It is a happy number.

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 47946421 - 2⁵ = 47946389 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 (47946461) 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, 8515 + ... + 12976.

It is an arithmetic number, because the mean of its divisors is an integer number (6318648).

Almost surely, 2^47946421 is an apocalyptic number.

It is an amenable number.

47946421 is a deficient number, since it is larger than the sum of its proper divisors (2602763).

47946421 is a wasteful number, since it uses less digits than its factorization.

47946421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21611.

The product of its digits is 48384, while the sum is 37.

The square root of 47946421 is about 6924.3354193742. The cubic root of 47946421 is about 363.2888466888.

The spelling of 47946421 in words is "forty-seven million, nine hundred forty-six thousand, four hundred twenty-one".