47309975 has 6 divisors (see below), whose sum is σ = 58664400. Its totient is φ = 37847960.

The previous prime is 47309971. The next prime is 47309989. The reversal of 47309975 is 57990374.

It is a happy number.

It is not a de Polignac number, because 47309975 - 2² = 47309971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47309971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 946175 + ... + 946224.

It is an arithmetic number, because the mean of its divisors is an integer number (9777400).

Almost surely, 2^47309975 is an apocalyptic number.

47309975 is a deficient number, since it is larger than the sum of its proper divisors (11354425).

47309975 is a wasteful number, since it uses less digits than its factorization.

47309975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892409 (or 1892404 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 47309975 is about 6878.2246982779. The cubic root of 47309975 is about 361.6742360987.

It can be divided in two parts, 47309 and 975, that added together give a palindrome (48284).

The spelling of 47309975 in words is "forty-seven million, three hundred nine thousand, nine hundred seventy-five".