70045679 has 4 divisors (see below), whose sum is σ = 76413480. Its totient is φ = 63677880.

The previous prime is 70045669. The next prime is 70045681. The reversal of 70045679 is 97654007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97654007 = 11 ⋅8877637.

It is a cyclic number.

It is not a de Polignac number, because 70045679 - 2⁴ = 70045663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70045639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3183884 + ... + 3183905.

It is an arithmetic number, because the mean of its divisors is an integer number (19103370).

Almost surely, 2^70045679 is an apocalyptic number.

70045679 is a deficient number, since it is larger than the sum of its proper divisors (6367801).

70045679 is a wasteful number, since it uses less digits than its factorization.

70045679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6367800.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 70045679 is about 8369.3296625238. The cubic root of 70045679 is about 412.2181562936.

The spelling of 70045679 in words is "seventy million, forty-five thousand, six hundred seventy-nine".