5070781 has 4 divisors (see below), whose sum is σ = 5107932. Its totient is φ = 5033632.

The previous prime is 5070733. The next prime is 5070809. The reversal of 5070781 is 1870705.

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 2775556 + 2295225 = 1666^2 + 1515^2 .

It is a cyclic number.

It is not a de Polignac number, because 5070781 - 2⁹ = 5070269 is a prime.

It is a super-2 number, since 2×5070781² = 51425639899922, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5070721) 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, 18370 + ... + 18643.

It is an arithmetic number, because the mean of its divisors is an integer number (1276983).

Almost surely, 2^5070781 is an apocalyptic number.

It is an amenable number.

5070781 is a deficient number, since it is larger than the sum of its proper divisors (37151).

5070781 is a wasteful number, since it uses less digits than its factorization.

5070781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37150.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 5070781 is about 2251.8394702998. The cubic root of 5070781 is about 171.8007088738.

The spelling of 5070781 in words is "five million, seventy thousand, seven hundred eighty-one".