70838605 has 8 divisors (see below), whose sum is σ = 85052664. Its totient is φ = 56640000.

The previous prime is 70838569. The next prime is 70838633. The reversal of 70838605 is 50683807.

It can be written as a sum of positive squares in 4 ways, for example, as 8838729 + 61999876 = 2973^2 + 7874^2 .

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

It is not a de Polignac number, because 70838605 - 2²³ = 62449997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12645 + ... + 17365.

It is an arithmetic number, because the mean of its divisors is an integer number (10631583).

Almost surely, 2^70838605 is an apocalyptic number.

It is an amenable number.

70838605 is a deficient number, since it is larger than the sum of its proper divisors (14214059).

70838605 is a wasteful number, since it uses less digits than its factorization.

70838605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7727.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 70838605 is about 8416.5672931427. The cubic root of 70838605 is about 413.7677776123.

The spelling of 70838605 in words is "seventy million, eight hundred thirty-eight thousand, six hundred five".