47996397 has 6 divisors (see below), whose sum is σ = 69328142. Its totient is φ = 31997592.

The previous prime is 47996393. The next prime is 47996419. The reversal of 47996397 is 79369974.

It can be written as a sum of positive squares in only one way, i.e., 41293476 + 6702921 = 6426^2 + 2589^2 .

It is not a de Polignac number, because 47996397 - 2² = 47996393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47996393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2666458 + ... + 2666475.

Almost surely, 2^47996397 is an apocalyptic number.

It is an amenable number.

47996397 is a deficient number, since it is larger than the sum of its proper divisors (21331745).

47996397 is a wasteful number, since it uses less digits than its factorization.

47996397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332939 (or 5332936 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 47996397 is about 6927.9432012683. The cubic root of 47996397 is about 363.4150251646.

The spelling of 47996397 in words is "forty-seven million, nine hundred ninety-six thousand, three hundred ninety-seven".