2615993 has 8 divisors (see below), whose sum is σ = 2675400. Its totient is φ = 2557440.

The previous prime is 2615989. The next prime is 2615999. The reversal of 2615993 is 3995162.

It can be written as a sum of positive squares in 4 ways, for example, as 94249 + 2521744 = 307^2 + 1588^2 .

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 2615993 - 2² = 2615989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2615999) 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, 14363 + ... + 14543.

It is an arithmetic number, because the mean of its divisors is an integer number (334425).

2^2615993 is an apocalyptic number.

It is an amenable number.

2615993 is a deficient number, since it is larger than the sum of its proper divisors (59407).

2615993 is a wasteful number, since it uses less digits than its factorization.

2615993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427.

The product of its digits is 14580, while the sum is 35.

The square root of 2615993 is about 1617.4031655713. The cubic root of 2615993 is about 137.7882525903.

The spelling of 2615993 in words is "two million, six hundred fifteen thousand, nine hundred ninety-three".