3698507 has 2 divisors, whose sum is σ = 3698508. Its totient is φ = 3698506.

The previous prime is 3698489. The next prime is 3698509. The reversal of 3698507 is 7058963.

It is a strong prime.

It is an emirp because it is prime and its reverse (7058963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3698507 - 2⁸ = 3698251 is a prime.

Together with 3698509, it forms a pair of twin primes.

It is a Chen prime.

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

It is not a weakly prime, because it can be changed into another prime (3698509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1849253 + 1849254.

It is an arithmetic number, because the mean of its divisors is an integer number (1849254).

Almost surely, 2^3698507 is an apocalyptic number.

3698507 is a deficient number, since it is larger than the sum of its proper divisors (1).

3698507 is an equidigital number, since it uses as much as digits as its factorization.

3698507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 3698507 is about 1923.1502801393. The cubic root of 3698507 is about 154.6472310307.

It can be divided in two parts, 369850 and 7, that multiplied together give a triangular number (2588950 = T₂₂₇₅).

The spelling of 3698507 in words is "three million, six hundred ninety-eight thousand, five hundred seven".