2492779 has 4 divisors (see below), whose sum is σ = 2516184. Its totient is φ = 2469376.

The previous prime is 2492767. The next prime is 2492783. The reversal of 2492779 is 9772942.

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

It is a cyclic number.

It is not a de Polignac number, because 2492779 - 2⁵ = 2492747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2492719) 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, 11542 + ... + 11755.

It is an arithmetic number, because the mean of its divisors is an integer number (629046).

2^2492779 is an apocalyptic number.

2492779 is a deficient number, since it is larger than the sum of its proper divisors (23405).

2492779 is a wasteful number, since it uses less digits than its factorization.

2492779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23404.

The product of its digits is 63504, while the sum is 40.

The square root of 2492779 is about 1578.8536980987. The cubic root of 2492779 is about 135.5900827523.

The spelling of 2492779 in words is "two million, four hundred ninety-two thousand, seven hundred seventy-nine".