3398697 has 6 divisors (see below), whose sum is σ = 4909242. Its totient is φ = 2265792.

The previous prime is 3398683. The next prime is 3398719. The reversal of 3398697 is 7968933.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2752281 + 646416 = 1659^2 + 804^2 .

It is not a de Polignac number, because 3398697 - 2¹⁹ = 2874409 is a prime.

It is a super-2 number, since 2×3398697² = 23102282595618, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3³ + 3¹³ + 9 + 8³ + 6⁸ + 9⁴ + 7⁶ .

3398697 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3398627) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 188808 + ... + 188825.

It is an arithmetic number, because the mean of its divisors is an integer number (818207).

Almost surely, 2^3398697 is an apocalyptic number.

It is an amenable number.

3398697 is a deficient number, since it is larger than the sum of its proper divisors (1510545).

3398697 is a wasteful number, since it uses less digits than its factorization.

3398697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377639 (or 377636 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 3398697 is about 1843.5555321172. Note that the first 4 decimals coincide. The cubic root of 3398697 is about 150.3502482048.

It can be divided in two parts, 3398 and 697, that added together give a triangular number (4095 = T₉₀).

The spelling of 3398697 in words is "three million, three hundred ninety-eight thousand, six hundred ninety-seven".