336870781 has 8 divisors (see below), whose sum is σ = 363598200. Its totient is φ = 310259712.

The previous prime is 336870749. The next prime is 336870797. The reversal of 336870781 is 187078633.

It can be written as a sum of positive squares in 4 ways, for example, as 8173881 + 328696900 = 2859^2 + 18130^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 336870781 - 2⁵ = 336870749 is a prime.

It is a super-2 number, since 2×336870781² = 226963846183099922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (336870481) 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, 23020 + ... + 34693.

It is an arithmetic number, because the mean of its divisors is an integer number (45449775).

Almost surely, 2^336870781 is an apocalyptic number.

It is an amenable number.

336870781 is a deficient number, since it is larger than the sum of its proper divisors (26727419).

336870781 is a wasteful number, since it uses less digits than its factorization.

336870781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58175.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 336870781 is about 18354.0399095131. The cubic root of 336870781 is about 695.8053779662.

The spelling of 336870781 in words is "three hundred thirty-six million, eight hundred seventy thousand, seven hundred eighty-one".