47190019 has 4 divisors (see below), whose sum is σ = 47223000. Its totient is φ = 47157040.

The previous prime is 47189983. The next prime is 47190037. The reversal of 47190019 is 91009174.

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

It is a cyclic number.

It is not a de Polignac number, because 47190019 - 2¹⁵ = 47157251 is a prime.

It is a super-2 number, since 2×47190019² = 4453795786440722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47190119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14242 + ... + 17239.

It is an arithmetic number, because the mean of its divisors is an integer number (11805750).

Almost surely, 2^47190019 is an apocalyptic number.

47190019 is a deficient number, since it is larger than the sum of its proper divisors (32981).

47190019 is a wasteful number, since it uses less digits than its factorization.

47190019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32980.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 47190019 is about 6869.4991811631. The cubic root of 47190019 is about 361.3682984014.

The spelling of 47190019 in words is "forty-seven million, one hundred ninety thousand, nineteen".