38608631 has 4 divisors (see below), whose sum is σ = 38625312. Its totient is φ = 38591952.

The previous prime is 38608621. The next prime is 38608637. The reversal of 38608631 is 13680683.

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: 13680683 = 137 ⋅99859.

It is a cyclic number.

It is not a de Polignac number, because 38608631 - 2¹⁰ = 38607607 is a prime.

It is a super-2 number, since 2×38608631² = 2981252775388322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38608591 and 38608600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38608637) 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, 4175 + ... + 9728.

It is an arithmetic number, because the mean of its divisors is an integer number (9656328).

Almost surely, 2^38608631 is an apocalyptic number.

38608631 is a deficient number, since it is larger than the sum of its proper divisors (16681).

38608631 is a wasteful number, since it uses less digits than its factorization.

38608631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16680.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 38608631 is about 6213.5843922812. The cubic root of 38608631 is about 337.9829566701.

The spelling of 38608631 in words is "thirty-eight million, six hundred eight thousand, six hundred thirty-one".