47140747 has 4 divisors (see below), whose sum is σ = 48766320. Its totient is φ = 45515176.

The previous prime is 47140733. The next prime is 47140757. The reversal of 47140747 is 74704174.

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

It is a cyclic number.

It is not a de Polignac number, because 47140747 - 2⁷ = 47140619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47140727) 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, 812743 + ... + 812800.

It is an arithmetic number, because the mean of its divisors is an integer number (12191580).

Almost surely, 2^47140747 is an apocalyptic number.

47140747 is a deficient number, since it is larger than the sum of its proper divisors (1625573).

47140747 is a wasteful number, since it uses less digits than its factorization.

47140747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625572.

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 47140747 is about 6865.9119569071. The cubic root of 47140747 is about 361.2424840891.

The spelling of 47140747 in words is "forty-seven million, one hundred forty thousand, seven hundred forty-seven".