38087845 has 4 divisors (see below), whose sum is σ = 45705420. Its totient is φ = 30470272.

The previous prime is 38087843. The next prime is 38087849. The reversal of 38087845 is 54878083.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8678916 + 29408929 = 2946^2 + 5423^2 .

It is a cyclic number.

It is not a de Polignac number, because 38087845 - 2¹ = 38087843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38087843) 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, 3808780 + ... + 3808789.

It is an arithmetic number, because the mean of its divisors is an integer number (11426355).

Almost surely, 2^38087845 is an apocalyptic number.

It is an amenable number.

38087845 is a deficient number, since it is larger than the sum of its proper divisors (7617575).

38087845 is an equidigital number, since it uses as much as digits as its factorization.

38087845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7617574.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 38087845 is about 6171.5350602585. The cubic root of 38087845 is about 336.4564051069.

The spelling of 38087845 in words is "thirty-eight million, eighty-seven thousand, eight hundred forty-five".