3973527739 has 4 divisors (see below), whose sum is σ = 4038667600. Its totient is φ = 3908387880.

The previous prime is 3973527737. The next prime is 3973527799. The reversal of 3973527739 is 9377253793.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9377253793 = 439 ⋅21360487.

It is a cyclic number.

It is not a de Polignac number, because 3973527739 - 2¹ = 3973527737 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 3973527739.

It is not an unprimeable number, because it can be changed into a prime (3973527737) 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, 32569839 + ... + 32569960.

It is an arithmetic number, because the mean of its divisors is an integer number (1009666900).

Almost surely, 2^3973527739 is an apocalyptic number.

3973527739 is a deficient number, since it is larger than the sum of its proper divisors (65139861).

3973527739 is an equidigital number, since it uses as much as digits as its factorization.

3973527739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65139860.

The product of its digits is 7501410, while the sum is 55.

The square root of 3973527739 is about 63035.9241940657. The cubic root of 3973527739 is about 1583.8914570547.

The spelling of 3973527739 in words is "three billion, nine hundred seventy-three million, five hundred twenty-seven thousand, seven hundred thirty-nine".