37350721 has 8 divisors (see below), whose sum is σ = 37781640. Its totient is φ = 36922368.

The previous prime is 37350701. The next prime is 37350769. The reversal of 37350721 is 12705373.

37350721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9641025 + 27709696 = 3105^2 + 5264^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 37350721 - 2¹¹ = 37348673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37350721.

It is not an unprimeable number, because it can be changed into a prime (37350701) 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 7 ways as a sum of consecutive naturals, for example, 45765 + ... + 46573.

It is an arithmetic number, because the mean of its divisors is an integer number (4722705).

Almost surely, 2^37350721 is an apocalyptic number.

It is an amenable number.

37350721 is a deficient number, since it is larger than the sum of its proper divisors (430919).

37350721 is a wasteful number, since it uses less digits than its factorization.

37350721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 37350721 is about 6111.5236234510. The cubic root of 37350721 is about 334.2717409167.

The spelling of 37350721 in words is "thirty-seven million, three hundred fifty thousand, seven hundred twenty-one".