7205812 has 6 divisors (see below), whose sum is σ = 12610178. Its totient is φ = 3602904.

The previous prime is 7205797. The next prime is 7205813. The reversal of 7205812 is 2185027.

It can be written as a sum of positive squares in only one way, i.e., 4016016 + 3189796 = 2004^2 + 1786^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7205813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900723 + ... + 900730.

Almost surely, 2^7205812 is an apocalyptic number.

It is an amenable number.

7205812 is a deficient number, since it is larger than the sum of its proper divisors (5404366).

7205812 is a wasteful number, since it uses less digits than its factorization.

7205812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801457 (or 1801455 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 7205812 is about 2684.3643567891. The cubic root of 7205812 is about 193.1498205794.

The spelling of 7205812 in words is "seven million, two hundred five thousand, eight hundred twelve".