38630761 has 4 divisors (see below), whose sum is σ = 41602372. Its totient is φ = 35659152.

The previous prime is 38630747. The next prime is 38630771. The reversal of 38630761 is 16703683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16703683 = 101 ⋅165383.

It can be written as a sum of positive squares in 2 ways, for example, as 1907161 + 36723600 = 1381^2 + 6060^2 .

It is a cyclic number.

It is not a de Polignac number, because 38630761 - 2¹¹ = 38628713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38630771) 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, 1485786 + ... + 1485811.

It is an arithmetic number, because the mean of its divisors is an integer number (10400593).

Almost surely, 2^38630761 is an apocalyptic number.

It is an amenable number.

38630761 is a deficient number, since it is larger than the sum of its proper divisors (2971611).

38630761 is a wasteful number, since it uses less digits than its factorization.

38630761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971610.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 38630761 is about 6215.3649128591. The cubic root of 38630761 is about 338.0475202494.

The spelling of 38630761 in words is "thirty-eight million, six hundred thirty thousand, seven hundred sixty-one".