3730720633 has 4 divisors (see below), whose sum is σ = 3731243940. Its totient is φ = 3730197328.

The previous prime is 3730720621. The next prime is 3730720649. The reversal of 3730720633 is 3360270373.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3073926249 + 656794384 = 55443^2 + 25628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3730720633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3730720613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250810 + ... + 265267.

It is an arithmetic number, because the mean of its divisors is an integer number (932810985).

Almost surely, 2^3730720633 is an apocalyptic number.

It is an amenable number.

3730720633 is a deficient number, since it is larger than the sum of its proper divisors (523307).

3730720633 is an equidigital number, since it uses as much as digits as its factorization.

3730720633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523306.

The product of its (nonzero) digits is 47628, while the sum is 34.

The square root of 3730720633 is about 61079.6253508484. The cubic root of 3730720633 is about 1550.9492115827.

The spelling of 3730720633 in words is "three billion, seven hundred thirty million, seven hundred twenty thousand, six hundred thirty-three".