7172965 has 4 divisors (see below), whose sum is σ = 8607564. Its totient is φ = 5738368.

The previous prime is 7172939. The next prime is 7172969. The reversal of 7172965 is 5692717.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4397409 + 2775556 = 2097^2 + 1666^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7172965 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7172969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717292 + ... + 717301.

It is an arithmetic number, because the mean of its divisors is an integer number (2151891).

Almost surely, 2^7172965 is an apocalyptic number.

It is an amenable number.

7172965 is a deficient number, since it is larger than the sum of its proper divisors (1434599).

7172965 is a wasteful number, since it uses less digits than its factorization.

7172965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434598.

The product of its digits is 26460, while the sum is 37.

The square root of 7172965 is about 2678.2391603440. The cubic root of 7172965 is about 192.8558885541.

The spelling of 7172965 in words is "seven million, one hundred seventy-two thousand, nine hundred sixty-five".