755787891 has 16 divisors (see below), whose sum is σ = 1033407648. Its totient is φ = 491040000.

The previous prime is 755787883. The next prime is 755787899. The reversal of 755787891 is 198787557.

It is an interprime number because it is at equal distance from previous prime (755787883) and next prime (755787899).

It is not a de Polignac number, because 755787891 - 2³ = 755787883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (755787899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134641 + ... + 140141.

It is an arithmetic number, because the mean of its divisors is an integer number (64587978).

Almost surely, 2^755787891 is an apocalyptic number.

755787891 is a deficient number, since it is larger than the sum of its proper divisors (277619757).

755787891 is a wasteful number, since it uses less digits than its factorization.

755787891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6662.

The product of its digits is 4939200, while the sum is 57.

The square root of 755787891 is about 27491.5967342750. The cubic root of 755787891 is about 910.8914867881.

The spelling of 755787891 in words is "seven hundred fifty-five million, seven hundred eighty-seven thousand, eight hundred ninety-one".