38900489 has 2 divisors, whose sum is σ = 38900490. Its totient is φ = 38900488.

The previous prime is 38900461. The next prime is 38900497. The reversal of 38900489 is 98400983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28174864 + 10725625 = 5308^2 + 3275^2 .

It is a cyclic number.

It is not a de Polignac number, because 38900489 - 2¹² = 38896393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38900419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19450244 + 19450245.

It is an arithmetic number, because the mean of its divisors is an integer number (19450245).

Almost surely, 2^38900489 is an apocalyptic number.

It is an amenable number.

38900489 is a deficient number, since it is larger than the sum of its proper divisors (1).

38900489 is an equidigital number, since it uses as much as digits as its factorization.

38900489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 38900489 is about 6237.0256533062. The cubic root of 38900489 is about 338.8324688580.

The spelling of 38900489 in words is "thirty-eight million, nine hundred thousand, four hundred eighty-nine".