47394919 has 16 divisors (see below), whose sum is σ = 55931904. Its totient is φ = 39592800.

The previous prime is 47394913. The next prime is 47394923. The reversal of 47394919 is 91949374.

47394919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47394919 - 2⁹ = 47394407 is a prime.

It is a super-2 number, since 2×47394919² = 4492556694033122, 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 (47394913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38142 + ... + 39364.

It is an arithmetic number, because the mean of its divisors is an integer number (3495744).

Almost surely, 2^47394919 is an apocalyptic number.

47394919 is a deficient number, since it is larger than the sum of its proper divisors (8536985).

47394919 is a wasteful number, since it uses less digits than its factorization.

47394919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518.

The product of its digits is 244944, while the sum is 46.

The square root of 47394919 is about 6884.3967782225. The cubic root of 47394919 is about 361.8905660073.

The spelling of 47394919 in words is "forty-seven million, three hundred ninety-four thousand, nine hundred nineteen".