3898507 has 2 divisors, whose sum is σ = 3898508. Its totient is φ = 3898506.

The previous prime is 3898487. The next prime is 3898511. The reversal of 3898507 is 7058983.

It is a strong prime.

It is an emirp because it is prime and its reverse (7058983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3898507 - 2⁷ = 3898379 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 3898507.

It is not a weakly prime, because it can be changed into another prime (3898537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1949253 + 1949254.

It is an arithmetic number, because the mean of its divisors is an integer number (1949254).

Almost surely, 2^3898507 is an apocalyptic number.

3898507 is a deficient number, since it is larger than the sum of its proper divisors (1).

3898507 is an equidigital number, since it uses as much as digits as its factorization.

3898507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 3898507 is about 1974.4637246604. The cubic root of 3898507 is about 157.3860030059.

The spelling of 3898507 in words is "three million, eight hundred ninety-eight thousand, five hundred seven".