2097406 has 4 divisors (see below), whose sum is σ = 3146112. Its totient is φ = 1048702.

The previous prime is 2097401. The next prime is 2097421. The reversal of 2097406 is 6047902.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2097406² = 8798223857672, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2097401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524350 + ... + 524353.

It is an arithmetic number, because the mean of its divisors is an integer number (786528).

2^2097406 is an apocalyptic number.

2097406 is a deficient number, since it is larger than the sum of its proper divisors (1048706).

2097406 is a wasteful number, since it uses less digits than its factorization.

2097406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048705.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 2097406 is about 1448.2423830285. The cubic root of 2097406 is about 128.0051674346.

The spelling of 2097406 in words is "two million, ninety-seven thousand, four hundred six".