47691825 has 12 divisors (see below), whose sum is σ = 78850608. Its totient is φ = 25435600.

The previous prime is 47691823. The next prime is 47691829. The reversal of 47691825 is 52819674.

It is not a de Polignac number, because 47691825 - 2¹ = 47691823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47691821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 317871 + ... + 318020.

It is an arithmetic number, because the mean of its divisors is an integer number (6570884).

Almost surely, 2^47691825 is an apocalyptic number.

It is an amenable number.

47691825 is a deficient number, since it is larger than the sum of its proper divisors (31158783).

47691825 is a wasteful number, since it uses less digits than its factorization.

47691825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635904 (or 635899 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 47691825 is about 6905.9268023923. The cubic root of 47691825 is about 362.6446826344.

It can be divided in two parts, 47691 and 825, that added together give a triangular number (48516 = T₃₁₁).

The spelling of 47691825 in words is "forty-seven million, six hundred ninety-one thousand, eight hundred twenty-five".