5097781 has 8 divisors (see below), whose sum is σ = 5513984. Its totient is φ = 4685040.

The previous prime is 5097767. The next prime is 5097787. The reversal of 5097781 is 1877905.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5097781 is a prime.

It is a super-2 number, since 2×5097781² = 51974742247922, which contains 22 as substring.

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 5097781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5097787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2800 + ... + 4246.

It is an arithmetic number, because the mean of its divisors is an integer number (689248).

Almost surely, 2^5097781 is an apocalyptic number.

It is an amenable number.

5097781 is a deficient number, since it is larger than the sum of its proper divisors (416203).

5097781 is a wasteful number, since it uses less digits than its factorization.

5097781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 5097781 is about 2257.8266098175. The cubic root of 5097781 is about 172.1050939669.

The spelling of 5097781 in words is "five million, ninety-seven thousand, seven hundred eighty-one".