7285047 has 48 divisors (see below), whose sum is σ = 12665856. Its totient is φ = 3643200.

The previous prime is 7285007. The next prime is 7285049. The reversal of 7285047 is 7405827.

It is not a de Polignac number, because 7285047 - 2¹⁰ = 7284023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

7285047 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7284999 and 7285017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7285049) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119397 + ... + 119457.

It is an arithmetic number, because the mean of its divisors is an integer number (263872).

Almost surely, 2^7285047 is an apocalyptic number.

7285047 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

7285047 is a deficient number, since it is larger than the sum of its proper divisors (5380809).

7285047 is a wasteful number, since it uses less digits than its factorization.

7285047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 7285047 is about 2699.0826219292. The cubic root of 7285047 is about 193.8551989233.

It can be divided in two parts, 728 and 5047, that added together give a palindrome (5775).

The spelling of 7285047 in words is "seven million, two hundred eighty-five thousand, forty-seven".