2397945 has 16 divisors (see below), whose sum is σ = 4185792. Its totient is φ = 1162560.

The previous prime is 2397931. The next prime is 2397947. The reversal of 2397945 is 5497932.

It is not a de Polignac number, because 2397945 - 2¹⁰ = 2396921 is a prime.

It is a d-powerful number, because it can be written as 2³ + 3¹³ + 9⁴ + 7³ + 9⁶ + 4⁹ + 5⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2397947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7102 + ... + 7431.

It is an arithmetic number, because the mean of its divisors is an integer number (261612).

2^2397945 is an apocalyptic number.

It is an amenable number.

2397945 is a deficient number, since it is larger than the sum of its proper divisors (1787847).

2397945 is a wasteful number, since it uses less digits than its factorization.

2397945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14552.

The product of its digits is 68040, while the sum is 39.

The square root of 2397945 is about 1548.5299480475. The cubic root of 2397945 is about 133.8483656402.

The spelling of 2397945 in words is "two million, three hundred ninety-seven thousand, nine hundred forty-five".