47307645 has 160 divisors (see below), whose sum is σ = 111234816. Its totient is φ = 18662400.

The previous prime is 47307599. The next prime is 47307661. The reversal of 47307645 is 54670374.

47307645 is a `hidden beast` number, since 4 + 7 + 3 + 0 + 7 + 645 = 666.

It is not a de Polignac number, because 47307645 - 2⁷ = 47307517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1153825 + ... + 1153865.

Almost surely, 2^47307645 is an apocalyptic number.

47307645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47307645 is an abundant number, since it is smaller than the sum of its proper divisors (63927171).

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

47307645 is a wasteful number, since it uses less digits than its factorization.

47307645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 47307645 is about 6878.0553210919. The cubic root of 47307645 is about 361.6682985573.

The spelling of 47307645 in words is "forty-seven million, three hundred seven thousand, six hundred forty-five".