70436879 has 12 divisors (see below), whose sum is σ = 75225696. Its totient is φ = 65917632.

The previous prime is 70436869. The next prime is 70436909. The reversal of 70436879 is 97863407.

It is not a de Polignac number, because 70436879 - 2²⁰ = 69388303 is a prime.

It is a super-2 number, since 2×70436879² = 9922707846521282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70436809) 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 11 ways as a sum of consecutive naturals, for example, 23447 + ... + 26279.

It is an arithmetic number, because the mean of its divisors is an integer number (6268808).

Almost surely, 2^70436879 is an apocalyptic number.

70436879 is a deficient number, since it is larger than the sum of its proper divisors (4788817).

70436879 is a wasteful number, since it uses less digits than its factorization.

70436879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926 (or 2903 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 70436879 is about 8392.6681693011. The cubic root of 70436879 is about 412.9841348431.

The spelling of 70436879 in words is "seventy million, four hundred thirty-six thousand, eight hundred seventy-nine".