47421357 has 8 divisors (see below), whose sum is σ = 63269184. Its totient is φ = 31593888.

The previous prime is 47421349. The next prime is 47421371. The reversal of 47421357 is 75312474.

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

It is not a de Polignac number, because 47421357 - 2³ = 47421349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47421337) 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, 1608 + ... + 9870.

It is an arithmetic number, because the mean of its divisors is an integer number (7908648).

Almost surely, 2^47421357 is an apocalyptic number.

It is an amenable number.

47421357 is a deficient number, since it is larger than the sum of its proper divisors (15847827).

47421357 is a wasteful number, since it uses less digits than its factorization.

47421357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10179.

The product of its digits is 23520, while the sum is 33.

The square root of 47421357 is about 6886.3166497047. The cubic root of 47421357 is about 361.9578438542.

The spelling of 47421357 in words is "forty-seven million, four hundred twenty-one thousand, three hundred fifty-seven".