47641731 has 4 divisors (see below), whose sum is σ = 63522312. Its totient is φ = 31761152.

The previous prime is 47641729. The next prime is 47641777. The reversal of 47641731 is 13714674.

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 47641731 - 2¹ = 47641729 is a prime.

It is a super-2 number, since 2×47641731² = 4539469065352722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47641692 and 47641701.

It is not an unprimeable number, because it can be changed into a prime (47641031) 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, 7940286 + ... + 7940291.

It is an arithmetic number, because the mean of its divisors is an integer number (15880578).

Almost surely, 2^47641731 is an apocalyptic number.

47641731 is a deficient number, since it is larger than the sum of its proper divisors (15880581).

47641731 is a wasteful number, since it uses less digits than its factorization.

47641731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15880580.

The product of its digits is 14112, while the sum is 33.

The square root of 47641731 is about 6902.2989648377. The cubic root of 47641731 is about 362.5176679458.

The spelling of 47641731 in words is "forty-seven million, six hundred forty-one thousand, seven hundred thirty-one".