47678625 has 80 divisors (see below), whose sum is σ = 94455504. Its totient is φ = 23846400.

The previous prime is 47678623. The next prime is 47678647. The reversal of 47678625 is 52687674.

It can be written as a sum of positive squares in 8 ways, for example, as 16842816 + 30835809 = 4104^2 + 5553^2 .

It is not a de Polignac number, because 47678625 - 2¹ = 47678623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (47678621) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 171987 + ... + 172263.

Almost surely, 2^47678625 is an apocalyptic number.

47678625 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47678625 is a deficient number, since it is larger than the sum of its proper divisors (46776879).

47678625 is a wasteful number, since it uses less digits than its factorization.

47678625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 302 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 47678625 is about 6904.9710354208. The cubic root of 47678625 is about 362.6112223120.

The spelling of 47678625 in words is "forty-seven million, six hundred seventy-eight thousand, six hundred twenty-five".