335920993 has 4 divisors (see below), whose sum is σ = 337362948. Its totient is φ = 334479040.

The previous prime is 335920979. The next prime is 335921009. The reversal of 335920993 is 399029533.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 399029533 = 7 ⋅57004219.

It can be written as a sum of positive squares in 2 ways, for example, as 138462289 + 197458704 = 11767^2 + 14052^2 .

It is a cyclic number.

It is not a de Polignac number, because 335920993 - 2¹⁷ = 335789921 is a prime.

It is a super-2 number, since 2×335920993² = 225685827076212098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (335920903) 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, 720628 + ... + 721093.

It is an arithmetic number, because the mean of its divisors is an integer number (84340737).

Almost surely, 2^335920993 is an apocalyptic number.

It is an amenable number.

335920993 is a deficient number, since it is larger than the sum of its proper divisors (1441955).

335920993 is a wasteful number, since it uses less digits than its factorization.

335920993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441954.

The product of its (nonzero) digits is 196830, while the sum is 43.

The square root of 335920993 is about 18328.1475605147. The cubic root of 335920993 is about 695.1508345397.

The spelling of 335920993 in words is "three hundred thirty-five million, nine hundred twenty thousand, nine hundred ninety-three".