70804505 has 8 divisors (see below), whose sum is σ = 85090824. Its totient is φ = 56560000.

The previous prime is 70804427. The next prime is 70804519. The reversal of 70804505 is 50540807.

It can be written as a sum of positive squares in 4 ways, for example, as 1315609 + 69488896 = 1147^2 + 8336^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70804505 - 2¹² = 70800409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6596 + ... + 13605.

It is an arithmetic number, because the mean of its divisors is an integer number (10636353).

Almost surely, 2^70804505 is an apocalyptic number.

It is an amenable number.

70804505 is a deficient number, since it is larger than the sum of its proper divisors (14286319).

70804505 is a wasteful number, since it uses less digits than its factorization.

70804505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20907.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 70804505 is about 8414.5412828032. The cubic root of 70804505 is about 413.7013743387.

The spelling of 70804505 in words is "seventy million, eight hundred four thousand, five hundred five".