38214691 has 4 divisors (see below), whose sum is σ = 40462632. Its totient is φ = 35966752.

The previous prime is 38214677. The next prime is 38214703. The reversal of 38214691 is 19641283.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38214691 - 2¹³ = 38206499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38214601) 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, 1123945 + ... + 1123978.

It is an arithmetic number, because the mean of its divisors is an integer number (10115658).

Almost surely, 2^38214691 is an apocalyptic number.

38214691 is a deficient number, since it is larger than the sum of its proper divisors (2247941).

38214691 is a wasteful number, since it uses less digits than its factorization.

38214691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247940.

The product of its digits is 10368, while the sum is 34.

The square root of 38214691 is about 6181.8032158910. The cubic root of 38214691 is about 336.8294975274.

The spelling of 38214691 in words is "thirty-eight million, two hundred fourteen thousand, six hundred ninety-one".