70770909 has 16 divisors (see below), whose sum is σ = 104005440. Its totient is φ = 42447360.

The previous prime is 70770859. The next prime is 70770929. The reversal of 70770909 is 90907707.

It is not a de Polignac number, because 70770909 - 2¹³ = 70762717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70770929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7854 + ... + 14255.

It is an arithmetic number, because the mean of its divisors is an integer number (6500340).

Almost surely, 2^70770909 is an apocalyptic number.

It is an amenable number.

70770909 is a deficient number, since it is larger than the sum of its proper divisors (33234531).

70770909 is a wasteful number, since it uses less digits than its factorization.

70770909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22220.

The product of its (nonzero) digits is 27783, while the sum is 39.

The square root of 70770909 is about 8412.5447398513. The cubic root of 70770909 is about 413.6359316562.

The spelling of 70770909 in words is "seventy million, seven hundred seventy thousand, nine hundred nine".