38677645 has 8 divisors (see below), whose sum is σ = 46446840. Its totient is φ = 30919680.

The previous prime is 38677643. The next prime is 38677649. The reversal of 38677645 is 54677683.

It can be written as a sum of positive squares in 4 ways, for example, as 2653641 + 36024004 = 1629^2 + 6002^2 .

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

It is not a de Polignac number, because 38677645 - 2¹ = 38677643 is a prime.

It is a super-3 number, since 3×38677645³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38677595 and 38677604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38677643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10621 + ... + 13789.

It is an arithmetic number, because the mean of its divisors is an integer number (5805855).

Almost surely, 2^38677645 is an apocalyptic number.

It is an amenable number.

38677645 is a deficient number, since it is larger than the sum of its proper divisors (7769195).

38677645 is a wasteful number, since it uses less digits than its factorization.

38677645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615.

The product of its digits is 846720, while the sum is 46.

The square root of 38677645 is about 6219.1353900683. The cubic root of 38677645 is about 338.1842214357.

The spelling of 38677645 in words is "thirty-eight million, six hundred seventy-seven thousand, six hundred forty-five".