2698698601 has 3 divisors (see below), whose sum is σ = 2698750551. Its totient is φ = 2698646652.

The previous prime is 2698698599. The next prime is 2698698623. The reversal of 2698698601 is 1068968962.

The square root of 2698698601 is 51949.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 580858201 + 2117840400 = 24101^2 + 46020^2 .

It is not a de Polignac number, because 2698698601 - 2¹ = 2698698599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2698698631) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 25975 + ... + 77923.

It is an arithmetic number, because the mean of its divisors is an integer number (899583517).

Almost surely, 2^2698698601 is an apocalyptic number.

2698698601 is the 51949-th square number.

2698698601 is the 25975-th centered octagonal number.

It is an amenable number.

2698698601 is a deficient number, since it is larger than the sum of its proper divisors (51950).

2698698601 is an frugal number, since it uses more digits than its factorization.

2698698601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103898 (or 51949 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 55.

The cubic root of 2698698601 is about 1392.2528897193.

The spelling of 2698698601 in words is "two billion, six hundred ninety-eight million, six hundred ninety-eight thousand, six hundred one".