47448031 has 4 divisors (see below), whose sum is σ = 49084200. Its totient is φ = 45811864.

The previous prime is 47448019. The next prime is 47448047. The reversal of 47448031 is 13084474.

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 47448031 - 2⁵ = 47447999 is a prime.

It is a super-2 number, since 2×47448031² = 4502631291553922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47447984 and 47448002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47448061) 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, 818041 + ... + 818098.

It is an arithmetic number, because the mean of its divisors is an integer number (12271050).

Almost surely, 2^47448031 is an apocalyptic number.

47448031 is a deficient number, since it is larger than the sum of its proper divisors (1636169).

47448031 is a wasteful number, since it uses less digits than its factorization.

47448031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636168.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 47448031 is about 6888.2531167198. The cubic root of 47448031 is about 362.0256969233.

The spelling of 47448031 in words is "forty-seven million, four hundred forty-eight thousand, thirty-one".