47908531 has 8 divisors (see below), whose sum is σ = 53150400. Its totient is φ = 42814440.

The previous prime is 47908477. The next prime is 47908559. The reversal of 47908531 is 13580974.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47908531 - 2⁹ = 47908019 is a prime.

It is a super-2 number, since 2×47908531² = 4590454685155922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47908571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36261 + ... + 37558.

It is an arithmetic number, because the mean of its divisors is an integer number (6643800).

Almost surely, 2^47908531 is an apocalyptic number.

47908531 is a deficient number, since it is larger than the sum of its proper divisors (5241869).

47908531 is a wasteful number, since it uses less digits than its factorization.

47908531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73889.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 47908531 is about 6921.5988759823. The cubic root of 47908531 is about 363.1931242715.

The spelling of 47908531 in words is "forty-seven million, nine hundred eight thousand, five hundred thirty-one".