7172903473 has 4 divisors (see below), whose sum is σ = 7404287488. Its totient is φ = 6941519460.

The previous prime is 7172903447. The next prime is 7172903489. The reversal of 7172903473 is 3743092717.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7172903473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7172903173) 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, 115691961 + ... + 115692022.

It is an arithmetic number, because the mean of its divisors is an integer number (1851071872).

Almost surely, 2^7172903473 is an apocalyptic number.

It is an amenable number.

7172903473 is a deficient number, since it is larger than the sum of its proper divisors (231384015).

7172903473 is a wasteful number, since it uses less digits than its factorization.

7172903473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231384014.

The product of its (nonzero) digits is 222264, while the sum is 43.

The square root of 7172903473 is about 84692.9954187476. The cubic root of 7172903473 is about 1928.5533713742.

The spelling of 7172903473 in words is "seven billion, one hundred seventy-two million, nine hundred three thousand, four hundred seventy-three".