47323731 has 16 divisors (see below), whose sum is σ = 77659904. Its totient is φ = 24961824.

The previous prime is 47323709. The next prime is 47323747. The reversal of 47323731 is 13732374.

It is not a de Polignac number, because 47323731 - 2⁷ = 47323603 is a prime.

It is a super-2 number, since 2×47323731² = 4479071031520722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47323751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86401 + ... + 86946.

It is an arithmetic number, because the mean of its divisors is an integer number (4853744).

Almost surely, 2^47323731 is an apocalyptic number.

47323731 is a deficient number, since it is larger than the sum of its proper divisors (30336173).

47323731 is a wasteful number, since it uses less digits than its factorization.

47323731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173370.

The product of its digits is 10584, while the sum is 30.

The square root of 47323731 is about 6879.2245929320. The cubic root of 47323731 is about 361.7092865552.

It can be divided in two parts, 4732373 and 1, that added together give a palindrome (4732374).

The spelling of 47323731 in words is "forty-seven million, three hundred twenty-three thousand, seven hundred thirty-one".