47291616 has 72 divisors (see below), whose sum is σ = 138849984. Its totient is φ = 15252480.

The previous prime is 47291599. The next prime is 47291633. The reversal of 47291616 is 61619274.

It is an interprime number because it is at equal distance from previous prime (47291599) and next prime (47291633).

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6280 + ... + 11576.

It is an arithmetic number, because the mean of its divisors is an integer number (1928472).

Almost surely, 2^47291616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47291616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69424992).

47291616 is an abundant number, since it is smaller than the sum of its proper divisors (91558368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47291616 is a wasteful number, since it uses less digits than its factorization.

47291616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344 (or 5333 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 47291616 is about 6876.8899947578. The cubic root of 47291616 is about 361.6274465553.

The spelling of 47291616 in words is "forty-seven million, two hundred ninety-one thousand, six hundred sixteen".