2697898356 has 18 divisors (see below), whose sum is σ = 6819687602. Its totient is φ = 899299440.

The previous prime is 2697898339. The next prime is 2697898397. The reversal of 2697898356 is 6538987962.

It can be written as a sum of positive squares in only one way, i.e., 2563801956 + 134096400 = 50634^2 + 11580^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 2697898293 and 2697898302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37470775 + ... + 37470846.

Almost surely, 2^2697898356 is an apocalyptic number.

It is an amenable number.

2697898356 is an abundant number, since it is smaller than the sum of its proper divisors (4121789246).

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

2697898356 is a wasteful number, since it uses less digits than its factorization.

2697898356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74941631 (or 74941626 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The square root of 2697898356 is about 51941.2972113712. The cubic root of 2697898356 is about 1392.1152612148.

The spelling of 2697898356 in words is "two billion, six hundred ninety-seven million, eight hundred ninety-eight thousand, three hundred fifty-six".