70078605 has 16 divisors (see below), whose sum is σ = 114734400. Its totient is φ = 36505728.

The previous prime is 70078601. The next prime is 70078621. The reversal of 70078605 is 50687007.

It is not a de Polignac number, because 70078605 - 2² = 70078601 is a prime.

It is a super-2 number, since 2×70078605² = 9822021757492050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70078601) 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 15 ways as a sum of consecutive naturals, for example, 53680 + ... + 54969.

It is an arithmetic number, because the mean of its divisors is an integer number (7170900).

Almost surely, 2^70078605 is an apocalyptic number.

It is an amenable number.

70078605 is a deficient number, since it is larger than the sum of its proper divisors (44655795).

70078605 is a wasteful number, since it uses less digits than its factorization.

70078605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108700.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 70078605 is about 8371.2964945700. The cubic root of 70078605 is about 412.2827359083.

The spelling of 70078605 in words is "seventy million, seventy-eight thousand, six hundred five".