855744741 has 6 divisors (see below), whose sum is σ = 1236075750. Its totient is φ = 570496488.

The previous prime is 855744737. The next prime is 855744761. The reversal of 855744741 is 147447558.

855744741 is a `hidden beast` number, since 8 + 5 + 574 + 4 + 74 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 477247716 + 378497025 = 21846^2 + 19455^2 .

It is not a de Polignac number, because 855744741 - 2² = 855744737 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855744761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47541366 + ... + 47541383.

It is an arithmetic number, because the mean of its divisors is an integer number (206012625).

Almost surely, 2^855744741 is an apocalyptic number.

It is an amenable number.

855744741 is a deficient number, since it is larger than the sum of its proper divisors (380331009).

855744741 is a wasteful number, since it uses less digits than its factorization.

855744741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95082755 (or 95082752 counting only the distinct ones).

The product of its digits is 627200, while the sum is 45.

The square root of 855744741 is about 29253.1150648952. The cubic root of 855744741 is about 949.3974909029.

The spelling of 855744741 in words is "eight hundred fifty-five million, seven hundred forty-four thousand, seven hundred forty-one".