47772539 has 8 divisors (see below), whose sum is σ = 48895488. Its totient is φ = 46654120.

The previous prime is 47772497. The next prime is 47772547. The reversal of 47772539 is 93527774.

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-47772539 is a prime.

It is a super-3 number, since 3×47772539³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47772539.

It is not an unprimeable number, because it can be changed into a prime (47772589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29624 + ... + 31194.

It is an arithmetic number, because the mean of its divisors is an integer number (6111936).

Almost surely, 2^47772539 is an apocalyptic number.

47772539 is a deficient number, since it is larger than the sum of its proper divisors (1122949).

47772539 is a wasteful number, since it uses less digits than its factorization.

47772539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265.

The product of its digits is 370440, while the sum is 44.

The square root of 47772539 is about 6911.7681529403. The cubic root of 47772539 is about 362.8491481857.

The spelling of 47772539 in words is "forty-seven million, seven hundred seventy-two thousand, five hundred thirty-nine".