38690966 has 4 divisors (see below), whose sum is σ = 58036452. Its totient is φ = 19345482.

The previous prime is 38690957. The next prime is 38690983. The reversal of 38690966 is 66909683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66909683 = 73 ⋅916571.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38690966.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9672740 + ... + 9672743.

It is an arithmetic number, because the mean of its divisors is an integer number (14509113).

Almost surely, 2^38690966 is an apocalyptic number.

38690966 is a deficient number, since it is larger than the sum of its proper divisors (19345486).

38690966 is a wasteful number, since it uses less digits than its factorization.

38690966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19345485.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 38690966 is about 6220.2062666764. The cubic root of 38690966 is about 338.2230417493.

The spelling of 38690966 in words is "thirty-eight million, six hundred ninety thousand, nine hundred sixty-six".