47291085 has 12 divisors (see below), whose sum is σ = 81971292. Its totient is φ = 25221888.

The previous prime is 47291077. The next prime is 47291113. The reversal of 47291085 is 58019274.

It can be written as a sum of positive squares in 2 ways, for example, as 29877156 + 17413929 = 5466^2 + 4173^2 .

It is not a de Polignac number, because 47291085 - 2³ = 47291077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 525412 + ... + 525501.

It is an arithmetic number, because the mean of its divisors is an integer number (6830941).

Almost surely, 2^47291085 is an apocalyptic number.

47291085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47291085 is a deficient number, since it is larger than the sum of its proper divisors (34680207).

47291085 is a wasteful number, since it uses less digits than its factorization.

47291085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050924 (or 1050921 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 47291085 is about 6876.8513870812. The cubic root of 47291085 is about 361.6260930744.

The spelling of 47291085 in words is "forty-seven million, two hundred ninety-one thousand, eighty-five".