2391679 has 8 divisors (see below), whose sum is σ = 2546640. Its totient is φ = 2238336.

The previous prime is 2391671. The next prime is 2391691. The reversal of 2391679 is 9761932.

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 2391679 - 2³ = 2391671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2391671) 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, 4312 + ... + 4834.

It is an arithmetic number, because the mean of its divisors is an integer number (318330).

2^2391679 is an apocalyptic number.

2391679 is a deficient number, since it is larger than the sum of its proper divisors (154961).

2391679 is a wasteful number, since it uses less digits than its factorization.

2391679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809.

The product of its digits is 20412, while the sum is 37.

The square root of 2391679 is about 1546.5054154448. The cubic root of 2391679 is about 133.7316788600.

The spelling of 2391679 in words is "two million, three hundred ninety-one thousand, six hundred seventy-nine".