383081693 has 2 divisors, whose sum is σ = 383081694. Its totient is φ = 383081692.

The previous prime is 383081651. The next prime is 383081719. The reversal of 383081693 is 396180383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 379977049 + 3104644 = 19493^2 + 1762^2 .

It is a cyclic number.

It is not a de Polignac number, because 383081693 - 2¹⁶ = 383016157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 383081693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (383081623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191540846 + 191540847.

It is an arithmetic number, because the mean of its divisors is an integer number (191540847).

Almost surely, 2^383081693 is an apocalyptic number.

It is an amenable number.

383081693 is a deficient number, since it is larger than the sum of its proper divisors (1).

383081693 is an equidigital number, since it uses as much as digits as its factorization.

383081693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 383081693 is about 19572.4728381469. The cubic root of 383081693 is about 726.2683737648.

The spelling of 383081693 in words is "three hundred eighty-three million, eighty-one thousand, six hundred ninety-three".