2789977 has 4 divisors (see below), whose sum is σ = 2794960. Its totient is φ = 2784996.

The previous prime is 2789951. The next prime is 2789993. The reversal of 2789977 is 7799872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2789977 - 2⁷ = 2789849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2789977.

It is not an unprimeable number, because it can be changed into a prime (2789077) 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, 1527 + ... + 2812.

It is an arithmetic number, because the mean of its divisors is an integer number (698740).

2^2789977 is an apocalyptic number.

It is an amenable number.

2789977 is a deficient number, since it is larger than the sum of its proper divisors (4983).

2789977 is an equidigital number, since it uses as much as digits as its factorization.

2789977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982.

The product of its digits is 444528, while the sum is 49.

The square root of 2789977 is about 1670.3224239649. The cubic root of 2789977 is about 140.7775948175. Note that the first 3 decimals are identical.

The spelling of 2789977 in words is "two million, seven hundred eighty-nine thousand, nine hundred seventy-seven".