47722015 has 16 divisors (see below), whose sum is σ = 65761920. Its totient is φ = 32879520.

The previous prime is 47722013. The next prime is 47722021. The reversal of 47722015 is 51022774.

It is not a de Polignac number, because 47722015 - 2¹ = 47722013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47722013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21789 + ... + 23878.

It is an arithmetic number, because the mean of its divisors is an integer number (4110120).

Almost surely, 2^47722015 is an apocalyptic number.

47722015 is a deficient number, since it is larger than the sum of its proper divisors (18039905).

47722015 is a wasteful number, since it uses less digits than its factorization.

47722015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45702.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 47722015 is about 6908.1122602343. The cubic root of 47722015 is about 362.7211872458.

Adding to 47722015 its reverse (51022774), we get a palindrome (98744789).

The spelling of 47722015 in words is "forty-seven million, seven hundred twenty-two thousand, fifteen".