3732865021 has 2 divisors, whose sum is σ = 3732865022. Its totient is φ = 3732865020.

The previous prime is 3732865009. The next prime is 3732865027. The reversal of 3732865021 is 1205682373.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1908379225 + 1824485796 = 43685^2 + 42714^2 .

It is a cyclic number.

It is not a de Polignac number, because 3732865021 - 2³¹ = 1585381373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3732865027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1866432510 + 1866432511.

It is an arithmetic number, because the mean of its divisors is an integer number (1866432511).

Almost surely, 2^3732865021 is an apocalyptic number.

It is an amenable number.

3732865021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3732865021 is an equidigital number, since it uses as much as digits as its factorization.

3732865021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 3732865021 is about 61097.1768660386. The cubic root of 3732865021 is about 1551.2463123475.

The spelling of 3732865021 in words is "three billion, seven hundred thirty-two million, eight hundred sixty-five thousand, twenty-one".