47352731 has 6 divisors (see below), whose sum is σ = 49976532. Its totient is φ = 44860140.

The previous prime is 47352727. The next prime is 47352733. The reversal of 47352731 is 13725374.

It is not a de Polignac number, because 47352731 - 2² = 47352727 is a prime.

It is a super-2 number, since 2×47352731² = 4484562266316722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47352733) 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, 65225 + ... + 65946.

It is an arithmetic number, because the mean of its divisors is an integer number (8329422).

Almost surely, 2^47352731 is an apocalyptic number.

47352731 is a deficient number, since it is larger than the sum of its proper divisors (2623801).

47352731 is a wasteful number, since it uses less digits than its factorization.

47352731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131209 (or 131190 counting only the distinct ones).

The product of its digits is 17640, while the sum is 32.

The square root of 47352731 is about 6881.3320658140. The cubic root of 47352731 is about 361.7831566633.

The spelling of 47352731 in words is "forty-seven million, three hundred fifty-two thousand, seven hundred thirty-one".