47148864 has 56 divisors (see below), whose sum is σ = 142573248. Its totient is φ = 13470720.

The previous prime is 47148863. The next prime is 47148869. The reversal of 47148864 is 46884174.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47148863) 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, 16197 + ... + 18884.

Almost surely, 2^47148864 is an apocalyptic number.

It is an amenable number.

47148864 is an abundant number, since it is smaller than the sum of its proper divisors (95424384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47148864 is a wasteful number, since it uses less digits than its factorization.

47148864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35103 (or 35093 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 47148864 is about 6866.5030401217. The cubic root of 47148864 is about 361.2632165916.

The spelling of 47148864 in words is "forty-seven million, one hundred forty-eight thousand, eight hundred sixty-four".