2120397 has 8 divisors (see below), whose sum is σ = 2896320. Its totient is φ = 1379040.

The previous prime is 2120387. The next prime is 2120411. The reversal of 2120397 is 7930212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2120397 - 2⁷ = 2120269 is a prime.

2120397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120317) 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, 8497 + ... + 8742.

It is an arithmetic number, because the mean of its divisors is an integer number (362040).

2^2120397 is an apocalyptic number.

It is an amenable number.

2120397 is a deficient number, since it is larger than the sum of its proper divisors (775923).

2120397 is a wasteful number, since it uses less digits than its factorization.

2120397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17283.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 2120397 is about 1456.1583018340. The cubic root of 2120397 is about 128.4711841193.

The spelling of 2120397 in words is "two million, one hundred twenty thousand, three hundred ninety-seven".