2197407 has 12 divisors (see below), whose sum is σ = 3093720. Its totient is φ = 1387152.

The previous prime is 2197387. The next prime is 2197409. The reversal of 2197407 is 7047912.

It is not a de Polignac number, because 2197407 - 2¹¹ = 2195359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197409) 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, 69 + ... + 2097.

It is an arithmetic number, because the mean of its divisors is an integer number (257810).

2^2197407 is an apocalyptic number.

2197407 is a deficient number, since it is larger than the sum of its proper divisors (896313).

2197407 is a wasteful number, since it uses less digits than its factorization.

2197407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2051 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 2197407 is about 1482.3653395840. The cubic root of 2197407 is about 130.0080271178.

It can be divided in two parts, 219 and 7407, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 2197407 in words is "two million, one hundred ninety-seven thousand, four hundred seven".