393739669007 has 4 divisors (see below), whose sum is σ = 393741118080. Its totient is φ = 393738219936.

The previous prime is 393739668979. The next prime is 393739669009. The reversal of 393739669007 is 700966937393.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700966937393 = 7247 ⋅96725119.

It is a cyclic number.

It is not a de Polignac number, because 393739669007 - 2¹⁴ = 393739652623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393739669009) 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, 181082 + ... + 905687.

It is an arithmetic number, because the mean of its divisors is an integer number (98435279520).

Almost surely, 2^393739669007 is an apocalyptic number.

393739669007 is a deficient number, since it is larger than the sum of its proper divisors (1449073).

393739669007 is a wasteful number, since it uses less digits than its factorization.

393739669007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449072.

The product of its (nonzero) digits is 34720812, while the sum is 62.

The spelling of 393739669007 in words is "three hundred ninety-three billion, seven hundred thirty-nine million, six hundred sixty-nine thousand, seven".