70978994 has 8 divisors (see below), whose sum is σ = 106562928. Its totient is φ = 35458020.

The previous prime is 70978993. The next prime is 70978997. The reversal of 70978994 is 49987907.

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

It is not an unprimeable number, because it can be changed into a prime (70978991) 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 3 ways as a sum of consecutive naturals, for example, 12812 + ... + 17495.

It is an arithmetic number, because the mean of its divisors is an integer number (13320366).

Almost surely, 2^70978994 is an apocalyptic number.

70978994 is a deficient number, since it is larger than the sum of its proper divisors (35583934).

70978994 is a wasteful number, since it uses less digits than its factorization.

70978994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31480.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 70978994 is about 8424.9032041917. The cubic root of 70978994 is about 414.0409342863.

The spelling of 70978994 in words is "seventy million, nine hundred seventy-eight thousand, nine hundred ninety-four".