2602391 has 8 divisors (see below), whose sum is σ = 2851200. Its totient is φ = 2355640.

The previous prime is 2602367. The next prime is 2602399. The reversal of 2602391 is 1932062.

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 2602391 - 2¹⁰ = 2601367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2602399) 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, 3620 + ... + 4278.

It is an arithmetic number, because the mean of its divisors is an integer number (356400).

2^2602391 is an apocalyptic number.

2602391 is a deficient number, since it is larger than the sum of its proper divisors (248809).

2602391 is a wasteful number, since it uses less digits than its factorization.

2602391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2602391 is about 1613.1927969093. The cubic root of 2602391 is about 137.5490249426.

The spelling of 2602391 in words is "two million, six hundred two thousand, three hundred ninety-one".