47307387 has 4 divisors (see below), whose sum is σ = 63076520. Its totient is φ = 31538256.

The previous prime is 47307331. The next prime is 47307409. The reversal of 47307387 is 78370374.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47307387 - 2¹⁴ = 47291003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47307307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7884562 + ... + 7884567.

It is an arithmetic number, because the mean of its divisors is an integer number (15769130).

Almost surely, 2^47307387 is an apocalyptic number.

47307387 is a deficient number, since it is larger than the sum of its proper divisors (15769133).

47307387 is a wasteful number, since it uses less digits than its factorization.

47307387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15769132.

The product of its (nonzero) digits is 98784, while the sum is 39.

The square root of 47307387 is about 6878.0365657650. The cubic root of 47307387 is about 361.6676410836.

The spelling of 47307387 in words is "forty-seven million, three hundred seven thousand, three hundred eighty-seven".