47789231 has 16 divisors (see below), whose sum is σ = 56739648. Its totient is φ = 39398400.

The previous prime is 47789213. The next prime is 47789243. The reversal of 47789231 is 13298774.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47789231 is a prime.

It is a super-2 number, since 2×47789231² = 4567621199142722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47789531) 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, 19811 + ... + 22091.

It is an arithmetic number, because the mean of its divisors is an integer number (3546228).

Almost surely, 2^47789231 is an apocalyptic number.

47789231 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

47789231 is a deficient number, since it is larger than the sum of its proper divisors (8950417).

47789231 is a wasteful number, since it uses less digits than its factorization.

47789231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402.

The product of its digits is 84672, while the sum is 41.

The square root of 47789231 is about 6912.9755532621. The cubic root of 47789231 is about 362.8914037914.

The spelling of 47789231 in words is "forty-seven million, seven hundred eighty-nine thousand, two hundred thirty-one".