2698921396 has 6 divisors (see below), whose sum is σ = 4723112450. Its totient is φ = 1349460696.

The previous prime is 2698921387. The next prime is 2698921399. The reversal of 2698921396 is 6931298962.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2269188496 + 429732900 = 47636^2 + 20730^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2698921399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337365171 + ... + 337365178.

Almost surely, 2^2698921396 is an apocalyptic number.

It is an amenable number.

2698921396 is a deficient number, since it is larger than the sum of its proper divisors (2024191054).

2698921396 is a wasteful number, since it uses less digits than its factorization.

2698921396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674730353 (or 674730351 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 55.

The square root of 2698921396 is about 51951.1443184845. The cubic root of 2698921396 is about 1392.2912018212.

The spelling of 2698921396 in words is "two billion, six hundred ninety-eight million, nine hundred twenty-one thousand, three hundred ninety-six".