3155398 has 4 divisors (see below), whose sum is σ = 4733100. Its totient is φ = 1577698.

The previous prime is 3155389. The next prime is 3155407. The reversal of 3155398 is 8935513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8935513 = 1543 ⋅5791.

It is an interprime number because it is at equal distance from previous prime (3155389) and next prime (3155407).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 788848 + ... + 788851.

It is an arithmetic number, because the mean of its divisors is an integer number (1183275).

Almost surely, 2^3155398 is an apocalyptic number.

3155398 is a deficient number, since it is larger than the sum of its proper divisors (1577702).

3155398 is a wasteful number, since it uses less digits than its factorization.

3155398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577701.

The product of its digits is 16200, while the sum is 34.

The square root of 3155398 is about 1776.3439982166. The cubic root of 3155398 is about 146.6734076332.

It can be divided in two parts, 3155 and 398, that added together give a palindrome (3553).

The spelling of 3155398 in words is "three million, one hundred fifty-five thousand, three hundred ninety-eight".