3765320997 has 4 divisors (see below), whose sum is σ = 5020428000. Its totient is φ = 2510213996.

The previous prime is 3765320987. The next prime is 3765321017. The reversal of 3765320997 is 7990235673.

3765320997 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3765320997 - 2¹⁰ = 3765319973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3765320927) 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, 627553497 + ... + 627553502.

It is an arithmetic number, because the mean of its divisors is an integer number (1255107000).

Almost surely, 2^3765320997 is an apocalyptic number.

It is an amenable number.

3765320997 is a deficient number, since it is larger than the sum of its proper divisors (1255107003).

3765320997 is a wasteful number, since it uses less digits than its factorization.

3765320997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255107002.

The product of its (nonzero) digits is 2143260, while the sum is 51.

The square root of 3765320997 is about 61362.2114741638. The cubic root of 3765320997 is about 1555.7291958117.

The spelling of 3765320997 in words is "three billion, seven hundred sixty-five million, three hundred twenty thousand, nine hundred ninety-seven".