70640994 has 8 divisors (see below), whose sum is σ = 141282000. Its totient is φ = 23546996.

The previous prime is 70640963. The next prime is 70641037. The reversal of 70640994 is 49904607.

It is a sphenic number, since it is the product of 3 distinct primes.

70640994 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5886744 + ... + 5886755.

It is an arithmetic number, because the mean of its divisors is an integer number (17660250).

Almost surely, 2^70640994 is an apocalyptic number.

70640994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

70640994 is a wasteful number, since it uses less digits than its factorization.

70640994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11773504.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 70640994 is about 8404.8196887262. The cubic root of 70640994 is about 413.3826711541.

The spelling of 70640994 in words is "seventy million, six hundred forty thousand, nine hundred ninety-four".