38207489 has 4 divisors (see below), whose sum is σ = 38220720. Its totient is φ = 38194260.

The previous prime is 38207479. The next prime is 38207503. The reversal of 38207489 is 98470283.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38207489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38207459) 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, 227 + ... + 8744.

It is an arithmetic number, because the mean of its divisors is an integer number (9555180).

It is a Proth number, since it is equal to 583 ⋅ 2¹⁶ + 1 and 583 < 2¹⁶.

Almost surely, 2^38207489 is an apocalyptic number.

It is an amenable number.

38207489 is a deficient number, since it is larger than the sum of its proper divisors (13231).

38207489 is an equidigital number, since it uses as much as digits as its factorization.

38207489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13230.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 38207489 is about 6181.2206723268. The cubic root of 38207489 is about 336.8083363947.

The spelling of 38207489 in words is "thirty-eight million, two hundred seven thousand, four hundred eighty-nine".