38716690 has 8 divisors (see below), whose sum is σ = 69690060. Its totient is φ = 15486672.

The previous prime is 38716679. The next prime is 38716693. The reversal of 38716690 is 9661783.

It can be written as a sum of positive squares in 2 ways, for example, as 37368769 + 1347921 = 6113^2 + 1161^2 .

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

It is a super-2 number, since 2×38716690² = 2997964169112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38716693) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1935825 + ... + 1935844.

Almost surely, 2^38716690 is an apocalyptic number.

38716690 is a deficient number, since it is larger than the sum of its proper divisors (30973370).

38716690 is a wasteful number, since it uses less digits than its factorization.

38716690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871676.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 38716690 is about 6222.2737001839. The cubic root of 38716690 is about 338.2979819136.

The spelling of 38716690 in words is "thirty-eight million, seven hundred sixteen thousand, six hundred ninety".