47387545 has 16 divisors (see below), whose sum is σ = 58121280. Its totient is φ = 37080000.

The previous prime is 47387533. The next prime is 47387563. The reversal of 47387545 is 54578374.

47387545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47387545 - 2¹⁵ = 47354777 is a prime.

It is a super-2 number, since 2×47387545² = 4491158842254050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76246 + ... + 76864.

It is an arithmetic number, because the mean of its divisors is an integer number (3632580).

Almost surely, 2^47387545 is an apocalyptic number.

It is an amenable number.

47387545 is a deficient number, since it is larger than the sum of its proper divisors (10733735).

47387545 is a wasteful number, since it uses less digits than its factorization.

47387545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936.

The product of its digits is 470400, while the sum is 43.

The square root of 47387545 is about 6883.8611984845. The cubic root of 47387545 is about 361.8717966294.

The spelling of 47387545 in words is "forty-seven million, three hundred eighty-seven thousand, five hundred forty-five".