2278697 has 8 divisors (see below), whose sum is σ = 2426112. Its totient is φ = 2132800.

The previous prime is 2278693. The next prime is 2278709. The reversal of 2278697 is 7968722.

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

It is a cyclic number.

It is not a de Polignac number, because 2278697 - 2² = 2278693 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 2¹⁵ + 7 + 8⁵ + 6⁸ + 9⁶ + 7² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5072 + ... + 5502.

It is an arithmetic number, because the mean of its divisors is an integer number (303264).

2^2278697 is an apocalyptic number.

It is an amenable number.

2278697 is a deficient number, since it is larger than the sum of its proper divisors (147415).

2278697 is a wasteful number, since it uses less digits than its factorization.

2278697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759.

The product of its digits is 84672, while the sum is 41.

The square root of 2278697 is about 1509.5353589764. The cubic root of 2278697 is about 131.5918098949.

The spelling of 2278697 in words is "two million, two hundred seventy-eight thousand, six hundred ninety-seven".