47278398 has 8 divisors (see below), whose sum is σ = 94556808. Its totient is φ = 15759464.

The previous prime is 47278391. The next prime is 47278433. The reversal of 47278398 is 89387274.

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

47278398 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47278391) 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, 3939861 + ... + 3939872.

It is an arithmetic number, because the mean of its divisors is an integer number (11819601).

Almost surely, 2^47278398 is an apocalyptic number.

47278398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47278398 is a wasteful number, since it uses less digits than its factorization.

47278398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7879738.

The product of its digits is 677376, while the sum is 48.

The square root of 47278398 is about 6875.9288827038. The cubic root of 47278398 is about 361.5937518091.

The spelling of 47278398 in words is "forty-seven million, two hundred seventy-eight thousand, three hundred ninety-eight".