2697978 has 8 divisors (see below), whose sum is σ = 5395968. Its totient is φ = 899324.

The previous prime is 2697977. The next prime is 2697983. The reversal of 2697978 is 8797962.

It is a sphenic number, since it is the product of 3 distinct primes.

2697978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2697971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224826 + ... + 224837.

It is an arithmetic number, because the mean of its divisors is an integer number (674496).

2^2697978 is an apocalyptic number.

2697978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2697978 is a wasteful number, since it uses less digits than its factorization.

2697978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449668.

The product of its digits is 381024, while the sum is 48.

The square root of 2697978 is about 1642.5522822729. The cubic root of 2697978 is about 139.2128959845.

The spelling of 2697978 in words is "two million, six hundred ninety-seven thousand, nine hundred seventy-eight".