2715391 has 4 divisors (see below), whose sum is σ = 3103312. Its totient is φ = 2327472.

The previous prime is 2715371. The next prime is 2715409. The reversal of 2715391 is 1935172.

2715391 = T₄₉₈ + T₄₉₉ + ... + T₅₁₈.

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

It is not a de Polignac number, because 2715391 - 2⁷ = 2715263 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 (2715371) 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, 193950 + ... + 193963.

It is an arithmetic number, because the mean of its divisors is an integer number (775828).

2^2715391 is an apocalyptic number.

2715391 is a deficient number, since it is larger than the sum of its proper divisors (387921).

2715391 is an equidigital number, since it uses as much as digits as its factorization.

2715391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387920.

The product of its digits is 1890, while the sum is 28.

The square root of 2715391 is about 1647.8443494457. The cubic root of 2715391 is about 139.5117515997.

The spelling of 2715391 in words is "two million, seven hundred fifteen thousand, three hundred ninety-one".