47996951 has 4 divisors (see below), whose sum is σ = 48437400. Its totient is φ = 47556504.

The previous prime is 47996911. The next prime is 47996981. The reversal of 47996951 is 15969974.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47996951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47996951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47996911) 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, 220061 + ... + 220278.

It is an arithmetic number, because the mean of its divisors is an integer number (12109350).

Almost surely, 2^47996951 is an apocalyptic number.

47996951 is a deficient number, since it is larger than the sum of its proper divisors (440449).

47996951 is a wasteful number, since it uses less digits than its factorization.

47996951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440448.

The product of its digits is 612360, while the sum is 50.

The square root of 47996951 is about 6927.9831841597. The cubic root of 47996951 is about 363.4164234025.

The spelling of 47996951 in words is "forty-seven million, nine hundred ninety-six thousand, nine hundred fifty-one".