3073987493 has 4 divisors (see below), whose sum is σ = 3081289548. Its totient is φ = 3066685440.

The previous prime is 3073987489. The next prime is 3073987507. The reversal of 3073987493 is 3947893703.

It is a happy number.

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 357701569 + 2716285924 = 18913^2 + 52118^2 .

It is a cyclic number.

It is not a de Polignac number, because 3073987493 - 2² = 3073987489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3073987453) 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, 3650396 + ... + 3651237.

It is an arithmetic number, because the mean of its divisors is an integer number (770322387).

Almost surely, 2^3073987493 is an apocalyptic number.

It is an amenable number.

3073987493 is a deficient number, since it is larger than the sum of its proper divisors (7302055).

3073987493 is an equidigital number, since it uses as much as digits as its factorization.

3073987493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7302054.

The product of its (nonzero) digits is 3429216, while the sum is 53.

The square root of 3073987493 is about 55443.5523122392. The cubic root of 3073987493 is about 1454.0099062007.

The spelling of 3073987493 in words is "three billion, seventy-three million, nine hundred eighty-seven thousand, four hundred ninety-three".