47528621 has 16 divisors (see below), whose sum is σ = 55425408. Its totient is φ = 39916800.

The previous prime is 47528599. The next prime is 47528623. The reversal of 47528621 is 12682574.

It is a de Polignac number, because none of the positive numbers 2^k-47528621 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47528623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143426 + ... + 143756.

It is an arithmetic number, because the mean of its divisors is an integer number (3464088).

Almost surely, 2^47528621 is an apocalyptic number.

It is an amenable number.

47528621 is a deficient number, since it is larger than the sum of its proper divisors (7896787).

47528621 is a wasteful number, since it uses less digits than its factorization.

47528621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its digits is 26880, while the sum is 35.

The square root of 47528621 is about 6894.1004489346. The cubic root of 47528621 is about 362.2305466483.

The spelling of 47528621 in words is "forty-seven million, five hundred twenty-eight thousand, six hundred twenty-one".