2173297437 has 24 divisors (see below), whose sum is σ = 3236029056. Its totient is φ = 1404756096.

The previous prime is 2173297429. The next prime is 2173297457. The reversal of 2173297437 is 7347923712.

It is not a de Polignac number, because 2173297437 - 2³ = 2173297429 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2173297392 and 2173297401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173297457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21253 + ... + 69269.

It is an arithmetic number, because the mean of its divisors is an integer number (134834544).

Almost surely, 2^2173297437 is an apocalyptic number.

It is an amenable number.

2173297437 is a deficient number, since it is larger than the sum of its proper divisors (1062731619).

2173297437 is a wasteful number, since it uses less digits than its factorization.

2173297437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48177 (or 48174 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 2173297437 is about 46618.6383005767. The cubic root of 2173297437 is about 1295.3080243022.

The spelling of 2173297437 in words is "two billion, one hundred seventy-three million, two hundred ninety-seven thousand, four hundred thirty-seven".