47421135 has 24 divisors (see below), whose sum is σ = 82414800. Its totient is φ = 25224192.

The previous prime is 47421107. The next prime is 47421139. The reversal of 47421135 is 53112474.

It is not a de Polignac number, because 47421135 - 2⁹ = 47420623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47421099 and 47421108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47421139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19032 + ... + 21378.

It is an arithmetic number, because the mean of its divisors is an integer number (3433950).

Almost surely, 2^47421135 is an apocalyptic number.

47421135 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47421135 is a deficient number, since it is larger than the sum of its proper divisors (34993665).

47421135 is a wasteful number, since it uses less digits than its factorization.

47421135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807 (or 2804 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 47421135 is about 6886.3005307640. The cubic root of 47421135 is about 361.9572790260.

It can be divided in two parts, 474 and 21135, that added together give a square (21609 = 147²).

The spelling of 47421135 in words is "forty-seven million, four hundred twenty-one thousand, one hundred thirty-five".