47742319 has 8 divisors (see below), whose sum is σ = 49904640. Its totient is φ = 45587256.

The previous prime is 47742311. The next prime is 47742349. The reversal of 47742319 is 91324774.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47742319 - 2³ = 47742311 is a prime.

It is a super-2 number, since 2×47742319² = 4558658046995522, 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 (47742311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15094 + ... + 17980.

It is an arithmetic number, because the mean of its divisors is an integer number (6238080).

Almost surely, 2^47742319 is an apocalyptic number.

47742319 is a deficient number, since it is larger than the sum of its proper divisors (2162321).

47742319 is a wasteful number, since it uses less digits than its factorization.

47742319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629.

The product of its digits is 42336, while the sum is 37.

The square root of 47742319 is about 6909.5816805361. The cubic root of 47742319 is about 362.7726215559.

The spelling of 47742319 in words is "forty-seven million, seven hundred forty-two thousand, three hundred nineteen".