47772239 has 8 divisors (see below), whose sum is σ = 48790512. Its totient is φ = 46758400.

The previous prime is 47772233. The next prime is 47772287. The reversal of 47772239 is 93227774.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47772239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47772196 and 47772205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47772233) 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, 29039 + ... + 30639.

It is an arithmetic number, because the mean of its divisors is an integer number (6098814).

Almost surely, 2^47772239 is an apocalyptic number.

47772239 is a deficient number, since it is larger than the sum of its proper divisors (1018273).

47772239 is a wasteful number, since it uses less digits than its factorization.

47772239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217.

The product of its digits is 148176, while the sum is 41.

The square root of 47772239 is about 6911.7464507894. The cubic root of 47772239 is about 362.8483886491.

The spelling of 47772239 in words is "forty-seven million, seven hundred seventy-two thousand, two hundred thirty-nine".