47951636 has 6 divisors (see below), whose sum is σ = 83915370. Its totient is φ = 23975816.

The previous prime is 47951599. The next prime is 47951647. The reversal of 47951636 is 63615974.

It can be written as a sum of positive squares in only one way, i.e., 41731600 + 6220036 = 6460^2 + 2494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47951593 and 47951602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5993951 + ... + 5993958.

It is an arithmetic number, because the mean of its divisors is an integer number (13985895).

Almost surely, 2^47951636 is an apocalyptic number.

It is an amenable number.

47951636 is a deficient number, since it is larger than the sum of its proper divisors (35963734).

47951636 is a wasteful number, since it uses less digits than its factorization.

47951636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11987913 (or 11987911 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 47951636 is about 6924.7119795700. The cubic root of 47951636 is about 363.3020175200.

The spelling of 47951636 in words is "forty-seven million, nine hundred fifty-one thousand, six hundred thirty-six".