38780101 has 4 divisors (see below), whose sum is σ = 40031104. Its totient is φ = 37529100.

The previous prime is 38780089. The next prime is 38780141. The reversal of 38780101 is 10108783.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38780101 - 2¹⁷ = 38649029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38780101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38780141) 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, 625455 + ... + 625516.

It is an arithmetic number, because the mean of its divisors is an integer number (10007776).

Almost surely, 2^38780101 is an apocalyptic number.

38780101 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

38780101 is a deficient number, since it is larger than the sum of its proper divisors (1251003).

38780101 is a wasteful number, since it uses less digits than its factorization.

38780101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251002.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 38780101 is about 6227.3671001475. The cubic root of 38780101 is about 338.4825716652.

Adding to 38780101 its reverse (10108783), we get a palindrome (48888884).

The spelling of 38780101 in words is "thirty-eight million, seven hundred eighty thousand, one hundred one".