2015397 has 12 divisors (see below), whose sum is σ = 2932384. Its totient is φ = 1333800.

The previous prime is 2015393. The next prime is 2015411. The reversal of 2015397 is 7935102.

It is not a de Polignac number, because 2015397 - 2² = 2015393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2015397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 618 + ... + 2100.

2^2015397 is an apocalyptic number.

It is an amenable number.

2015397 is a deficient number, since it is larger than the sum of its proper divisors (916987).

2015397 is a wasteful number, since it uses less digits than its factorization.

2015397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 2015397 is about 1419.6467870566. The cubic root of 2015397 is about 126.3145955753.

The spelling of 2015397 in words is "two million, fifteen thousand, three hundred ninety-seven".