7350721 has 8 divisors (see below), whose sum is σ = 8596544. Its totient is φ = 6153840.

The previous prime is 7350703. The next prime is 7350773. The reversal of 7350721 is 1270537.

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

It is not a de Polignac number, because 7350721 - 2⁹ = 7350209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7350781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11910 + ... + 12511.

It is an arithmetic number, because the mean of its divisors is an integer number (1074568).

Almost surely, 2^7350721 is an apocalyptic number.

It is an amenable number.

7350721 is a deficient number, since it is larger than the sum of its proper divisors (1245823).

7350721 is a wasteful number, since it uses less digits than its factorization.

7350721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24471.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 7350721 is about 2711.2213115126. The cubic root of 7350721 is about 194.4359858331.

The spelling of 7350721 in words is "seven million, three hundred fifty thousand, seven hundred twenty-one".