47015278 has 4 divisors (see below), whose sum is σ = 70522920. Its totient is φ = 23507638.

The previous prime is 47015263. The next prime is 47015279. The reversal of 47015278 is 87251074.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47015279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11753818 + ... + 11753821.

It is an arithmetic number, because the mean of its divisors is an integer number (17630730).

Almost surely, 2^47015278 is an apocalyptic number.

47015278 is a deficient number, since it is larger than the sum of its proper divisors (23507642).

47015278 is a wasteful number, since it uses less digits than its factorization.

47015278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23507641.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 47015278 is about 6856.7687725342. The cubic root of 47015278 is about 360.9217070718.

The spelling of 47015278 in words is "forty-seven million, fifteen thousand, two hundred seventy-eight".