2172507 has 8 divisors (see below), whose sum is σ = 2904576. Its totient is φ = 1444392.

The previous prime is 2172497. The next prime is 2172539. The reversal of 2172507 is 7052712.

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

It is not a de Polignac number, because 2172507 - 2⁴ = 2172491 is a prime.

2172507 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172587) 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, 718 + ... + 2204.

It is an arithmetic number, because the mean of its divisors is an integer number (363072).

2^2172507 is an apocalyptic number.

2172507 is a deficient number, since it is larger than the sum of its proper divisors (732069).

2172507 is a wasteful number, since it uses less digits than its factorization.

2172507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 2172507 is about 1473.9426718838. The cubic root of 2172507 is about 129.5150969018.

The spelling of 2172507 in words is "two million, one hundred seventy-two thousand, five hundred seven".