70696578 has 16 divisors (see below), whose sum is σ = 143097696. Its totient is φ = 23281440.

The previous prime is 70696553. The next prime is 70696579. The reversal of 70696578 is 87569607.

It is a super-2 number, since 2×70696578² = 9996012281820168, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70696579) by changing a digit.

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, 70483 + ... + 71478.

It is an arithmetic number, because the mean of its divisors is an integer number (8943606).

Almost surely, 2^70696578 is an apocalyptic number.

70696578 is an abundant number, since it is smaller than the sum of its proper divisors (72401118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70696578 is a wasteful number, since it uses less digits than its factorization.

70696578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142049.

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 70696578 is about 8408.1257126663. The cubic root of 70696578 is about 413.4910663748.

The spelling of 70696578 in words is "seventy million, six hundred ninety-six thousand, five hundred seventy-eight".