47044919 has 4 divisors (see below), whose sum is σ = 47162640. Its totient is φ = 46927200.

The previous prime is 47044909. The next prime is 47044927. The reversal of 47044919 is 91944074.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47044919 is a prime.

It is a super-2 number, since 2×47044919² = 4426448807433122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47044909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58259 + ... + 59060.

It is an arithmetic number, because the mean of its divisors is an integer number (11790660).

Almost surely, 2^47044919 is an apocalyptic number.

47044919 is a deficient number, since it is larger than the sum of its proper divisors (117721).

47044919 is a wasteful number, since it uses less digits than its factorization.

47044919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117720.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 47044919 is about 6858.9298728009. The cubic root of 47044919 is about 360.9975393923.

The spelling of 47044919 in words is "forty-seven million, forty-four thousand, nine hundred nineteen".