47994321 has 8 divisors (see below), whose sum is σ = 65480800. Its totient is φ = 31252032.

The previous prime is 47994301. The next prime is 47994341. The reversal of 47994321 is 12349974.

It is an interprime number because it is at equal distance from previous prime (47994301) and next prime (47994341).

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

It is not a de Polignac number, because 47994321 - 2⁶ = 47994257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47994321.

It is not an unprimeable number, because it can be changed into a prime (47994301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185896 + ... + 186153.

It is an arithmetic number, because the mean of its divisors is an integer number (8185100).

Almost surely, 2^47994321 is an apocalyptic number.

It is an amenable number.

47994321 is a deficient number, since it is larger than the sum of its proper divisors (17486479).

47994321 is a wasteful number, since it uses less digits than its factorization.

47994321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372095.

The product of its digits is 54432, while the sum is 39.

The square root of 47994321 is about 6927.7933716300. The cubic root of 47994321 is about 363.4097854625.

The spelling of 47994321 in words is "forty-seven million, nine hundred ninety-four thousand, three hundred twenty-one".