3493888 has 26 divisors (see below), whose sum is σ = 6995114. Its totient is φ = 1744896.

The previous prime is 3493883. The next prime is 3493909. The reversal of 3493888 is 8883943.

It can be written as a sum of positive squares in only one way, i.e., 2166784 + 1327104 = 1472^2 + 1152^2 .

It is an Ulam number.

It is a nialpdrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3493883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3670 + ... + 4522.

Almost surely, 2^3493888 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 3493888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3497557).

3493888 is an abundant number, since it is smaller than the sum of its proper divisors (3501226).

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

3493888 is an frugal number, since it uses more digits than its factorization.

3493888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 855 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 3493888 is about 1869.1944789133. The cubic root of 3493888 is about 151.7410178997.

The spelling of 3493888 in words is "three million, four hundred ninety-three thousand, eight hundred eighty-eight".