47315739 has 8 divisors (see below), whose sum is σ = 63542080. Its totient is φ = 31316616.

The previous prime is 47315729. The next prime is 47315747. The reversal of 47315739 is 93751374.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47315739 - 2¹² = 47311643 is a prime.

It is a super-2 number, since 2×47315739² = 4477558314232242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47315697 and 47315706.

It is not an unprimeable number, because it can be changed into a prime (47315729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56317 + ... + 57150.

It is an arithmetic number, because the mean of its divisors is an integer number (7942760).

Almost surely, 2^47315739 is an apocalyptic number.

47315739 is a deficient number, since it is larger than the sum of its proper divisors (16226341).

47315739 is a wasteful number, since it uses less digits than its factorization.

47315739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113609.

The product of its digits is 79380, while the sum is 39.

The square root of 47315739 is about 6878.6436889840. The cubic root of 47315739 is about 361.6889236682.

The spelling of 47315739 in words is "forty-seven million, three hundred fifteen thousand, seven hundred thirty-nine".