3400637 has 2 divisors, whose sum is σ = 3400638. Its totient is φ = 3400636.

The previous prime is 3400613. The next prime is 3400673. The reversal of 3400637 is 7360043.

Together with next prime (3400673) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3136441 + 264196 = 1771^2 + 514^2 .

It is a cyclic number.

It is not a de Polignac number, because 3400637 - 2¹⁸ = 3138493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3405637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1700318 + 1700319.

It is an arithmetic number, because the mean of its divisors is an integer number (1700319).

Almost surely, 2^3400637 is an apocalyptic number.

It is an amenable number.

3400637 is a deficient number, since it is larger than the sum of its proper divisors (1).

3400637 is an equidigital number, since it uses as much as digits as its factorization.

3400637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 3400637 is about 1844.0816142460. The cubic root of 3400637 is about 150.3788497543.

It can be divided in two parts, 34006 and 37, that added together give a palindrome (34043).

The spelling of 3400637 in words is "three million, four hundred thousand, six hundred thirty-seven".