47951471 has 4 divisors (see below), whose sum is σ = 49605000. Its totient is φ = 46297944.

The previous prime is 47951461. The next prime is 47951473. The reversal of 47951471 is 17415974.

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

It is a cyclic number.

It is not a de Polignac number, because 47951471 - 2¹⁰ = 47950447 is a prime.

It is a super-3 number, since 3×47951471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47951473) 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, 826721 + ... + 826778.

It is an arithmetic number, because the mean of its divisors is an integer number (12401250).

Almost surely, 2^47951471 is an apocalyptic number.

47951471 is a deficient number, since it is larger than the sum of its proper divisors (1653529).

47951471 is a wasteful number, since it uses less digits than its factorization.

47951471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653528.

The product of its digits is 35280, while the sum is 38.

The square root of 47951471 is about 6924.7000657068. The cubic root of 47951471 is about 363.3016008161.

The spelling of 47951471 in words is "forty-seven million, nine hundred fifty-one thousand, four hundred seventy-one".