47477512 has 16 divisors (see below), whose sum is σ = 91426860. Its totient is φ = 23097024.

The previous prime is 47477503. The next prime is 47477513. The reversal of 47477512 is 21577474.

It can be written as a sum of positive squares in 2 ways, for example, as 47416996 + 60516 = 6886^2 + 246^2 .

It is a super-2 number, since 2×47477512² = 4508228291420288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (47477513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79903 + ... + 80494.

Almost surely, 2^47477512 is an apocalyptic number.

It is an amenable number.

47477512 is a deficient number, since it is larger than the sum of its proper divisors (43949348).

47477512 is a wasteful number, since it uses less digits than its factorization.

47477512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160440 (or 160436 counting only the distinct ones).

The product of its digits is 54880, while the sum is 37.

The square root of 47477512 is about 6890.3927319130. The cubic root of 47477512 is about 362.1006608340.

The spelling of 47477512 in words is "forty-seven million, four hundred seventy-seven thousand, five hundred twelve".