7200890 has 8 divisors (see below), whose sum is σ = 12961620. Its totient is φ = 2880352.

The previous prime is 7200889. The next prime is 7200899. The reversal of 7200890 is 980027.

It can be written as a sum of positive squares in 2 ways, for example, as 7198489 + 2401 = 2683^2 + 49^2 .

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

It is not an unprimeable number, because it can be changed into a prime (7200899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360035 + ... + 360054.

Almost surely, 2^7200890 is an apocalyptic number.

7200890 is a deficient number, since it is larger than the sum of its proper divisors (5760730).

7200890 is a wasteful number, since it uses less digits than its factorization.

7200890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720096.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 7200890 is about 2683.4474095834. The cubic root of 7200890 is about 193.1058329410.

The spelling of 7200890 in words is "seven million, two hundred thousand, eight hundred ninety".