47527749 has 8 divisors (see below), whose sum is σ = 70411520. Its totient is φ = 31685148.

The previous prime is 47527747. The next prime is 47527751. The reversal of 47527749 is 94772574.

It is an interprime number because it is at equal distance from previous prime (47527747) and next prime (47527751).

It is not a de Polignac number, because 47527749 - 2¹ = 47527747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47527741) 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, 880117 + ... + 880170.

It is an arithmetic number, because the mean of its divisors is an integer number (8801440).

Almost surely, 2^47527749 is an apocalyptic number.

It is an amenable number.

47527749 is a deficient number, since it is larger than the sum of its proper divisors (22883771).

47527749 is a wasteful number, since it uses less digits than its factorization.

47527749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760296 (or 1760290 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 47527749 is about 6894.0372061659. The cubic root of 47527749 is about 362.2283313728.

It can be divided in two parts, 475 and 27749, that added together give a square (28224 = 168²).

The spelling of 47527749 in words is "forty-seven million, five hundred twenty-seven thousand, seven hundred forty-nine".