2612391 has 8 divisors (see below), whose sum is σ = 3500544. Its totient is φ = 1732920.

The previous prime is 2612383. The next prime is 2612399. The reversal of 2612391 is 1932162.

It is an interprime number because it is at equal distance from previous prime (2612383) and next prime (2612399).

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

It is not a de Polignac number, because 2612391 - 2³ = 2612383 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2612399) 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, 1431 + ... + 2696.

It is an arithmetic number, because the mean of its divisors is an integer number (437568).

2^2612391 is an apocalyptic number.

2612391 is a deficient number, since it is larger than the sum of its proper divisors (888153).

2612391 is a wasteful number, since it uses less digits than its factorization.

2612391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341.

The product of its digits is 648, while the sum is 24.

The square root of 2612391 is about 1616.2892686645. The cubic root of 2612391 is about 137.7249826384.

It can be divided in two parts, 2612 and 391, that added together give a palindrome (3003).

The spelling of 2612391 in words is "two million, six hundred twelve thousand, three hundred ninety-one".