70800169 has 4 divisors (see below), whose sum is σ = 77236560. Its totient is φ = 64363780.

The previous prime is 70800161. The next prime is 70800179. The reversal of 70800169 is 96100807.

70800169 = 2532² + 2533² + ... + 2542².

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 not a de Polignac number, because 70800169 - 2³ = 70800161 is a prime.

It is a super-2 number, since 2×70800169² = 10025327860857122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70800169.

It is not an unprimeable number, because it can be changed into a prime (70800161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3218179 + ... + 3218200.

It is an arithmetic number, because the mean of its divisors is an integer number (19309140).

Almost surely, 2^70800169 is an apocalyptic number.

It is an amenable number.

70800169 is a deficient number, since it is larger than the sum of its proper divisors (6436391).

70800169 is a wasteful number, since it uses less digits than its factorization.

70800169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6436390.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 70800169 is about 8414.2836296384. The cubic root of 70800169 is about 413.6929292744.

The spelling of 70800169 in words is "seventy million, eight hundred thousand, one hundred sixty-nine".