3698172 has 36 divisors (see below), whose sum is σ = 9569560. Its totient is φ = 1203552.

The previous prime is 3698153. The next prime is 3698183. The reversal of 3698172 is 2718963.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×3698172² = 27352952283168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 354 + ... + 2742.

Almost surely, 2^3698172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3698172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4784780).

3698172 is an abundant number, since it is smaller than the sum of its proper divisors (5871388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3698172 is a wasteful number, since it uses less digits than its factorization.

3698172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442 (or 2437 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 3698172 is about 1923.0631814894. The cubic root of 3698172 is about 154.6425617243.

It can be divided in two parts, 3698 and 172, that multiplied together give a cube (636056 = 86³).

The spelling of 3698172 in words is "three million, six hundred ninety-eight thousand, one hundred seventy-two".