802179473 has 4 divisors (see below), whose sum is σ = 821744868. Its totient is φ = 782614080.

The previous prime is 802179461. The next prime is 802179481. The reversal of 802179473 is 374971208.

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 25331089 + 776848384 = 5033^2 + 27872^2 .

It is a cyclic number.

It is not a de Polignac number, because 802179473 - 2⁴ = 802179457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 19565353 = 802179473 / (8 + 0 + 2 + 1 + 7 + 9 + 4 + 7 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 802179473.

It is not an unprimeable number, because it can be changed into a prime (802179403) 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, 9782636 + ... + 9782717.

It is an arithmetic number, because the mean of its divisors is an integer number (205436217).

Almost surely, 2^802179473 is an apocalyptic number.

It is an amenable number.

802179473 is a deficient number, since it is larger than the sum of its proper divisors (19565395).

802179473 is a wasteful number, since it uses less digits than its factorization.

802179473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19565394.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 802179473 is about 28322.7730457312. The cubic root of 802179473 is about 929.1600204511.

The spelling of 802179473 in words is "eight hundred two million, one hundred seventy-nine thousand, four hundred seventy-three".