2696978 has 4 divisors (see below), whose sum is σ = 4045470. Its totient is φ = 1348488.

The previous prime is 2696977. The next prime is 2696989. The reversal of 2696978 is 8796962.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2211169 + 485809 = 1487^2 + 697^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2696977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674243 + ... + 674246.

2^2696978 is an apocalyptic number.

2696978 is a deficient number, since it is larger than the sum of its proper divisors (1348492).

2696978 is a wasteful number, since it uses less digits than its factorization.

2696978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348491.

The product of its digits is 326592, while the sum is 47.

The square root of 2696978 is about 1642.2478497474. The cubic root of 2696978 is about 139.1956942012.

The spelling of 2696978 in words is "two million, six hundred ninety-six thousand, nine hundred seventy-eight".