2423997 has 6 divisors (see below), whose sum is σ = 3501342. Its totient is φ = 1615992.

The previous prime is 2423969. The next prime is 2423999. The reversal of 2423997 is 7993242.

It can be written as a sum of positive squares in only one way, i.e., 1490841 + 933156 = 1221^2 + 966^2 .

It is not a de Polignac number, because 2423997 - 2¹⁸ = 2161853 is a prime.

It is a super-2 number, since 2×2423997² = 11751522912018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2423999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134658 + ... + 134675.

It is an arithmetic number, because the mean of its divisors is an integer number (583557).

2^2423997 is an apocalyptic number.

It is an amenable number.

2423997 is a deficient number, since it is larger than the sum of its proper divisors (1077345).

2423997 is a wasteful number, since it uses less digits than its factorization.

2423997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269339 (or 269336 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 2423997 is about 1556.9190730414. The cubic root of 2423997 is about 134.3313438137.

It can be divided in two parts, 24239 and 97, that added together give a square (24336 = 156²).

The spelling of 2423997 in words is "two million, four hundred twenty-three thousand, nine hundred ninety-seven".