755597987 has 4 divisors (see below), whose sum is σ = 781653120. Its totient is φ = 729542856.

The previous prime is 755597981. The next prime is 755597989. The reversal of 755597987 is 789795557.

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

It is a cyclic number.

It is not a de Polignac number, because 755597987 - 2⁴ = 755597971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (755597981) 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, 13027523 + ... + 13027580.

It is an arithmetic number, because the mean of its divisors is an integer number (195413280).

Almost surely, 2^755597987 is an apocalyptic number.

755597987 is a deficient number, since it is larger than the sum of its proper divisors (26055133).

755597987 is a wasteful number, since it uses less digits than its factorization.

755597987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26055132.

The product of its digits is 27783000, while the sum is 62.

The square root of 755597987 is about 27488.1426618824. The cubic root of 755597987 is about 910.8151882969.

The spelling of 755597987 in words is "seven hundred fifty-five million, five hundred ninety-seven thousand, nine hundred eighty-seven".