38461889 has 4 divisors (see below), whose sum is σ = 38605140. Its totient is φ = 38318640.

The previous prime is 38461883. The next prime is 38461897. The reversal of 38461889 is 98816483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98816483 = 1669 ⋅59207.

It can be written as a sum of positive squares in 2 ways, for example, as 14500864 + 23961025 = 3808^2 + 4895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38461889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38461883) 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, 71222 + ... + 71759.

It is an arithmetic number, because the mean of its divisors is an integer number (9651285).

Almost surely, 2^38461889 is an apocalyptic number.

It is an amenable number.

38461889 is a deficient number, since it is larger than the sum of its proper divisors (143251).

38461889 is a wasteful number, since it uses less digits than its factorization.

38461889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143250.

The product of its digits is 331776, while the sum is 47.

The square root of 38461889 is about 6201.7649907103. The cubic root of 38461889 is about 337.5542160731.

The spelling of 38461889 in words is "thirty-eight million, four hundred sixty-one thousand, eight hundred eighty-nine".