70816994 has 4 divisors (see below), whose sum is σ = 106225494. Its totient is φ = 35408496.

The previous prime is 70816979. The next prime is 70817003. The reversal of 70816994 is 49961807.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42055225 + 28761769 = 6485^2 + 5363^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17704247 + ... + 17704250.

Almost surely, 2^70816994 is an apocalyptic number.

70816994 is a deficient number, since it is larger than the sum of its proper divisors (35408500).

70816994 is a wasteful number, since it uses less digits than its factorization.

70816994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35408499.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 70816994 is about 8415.2833582714. The cubic root of 70816994 is about 413.7256967680.

The spelling of 70816994 in words is "seventy million, eight hundred sixteen thousand, nine hundred ninety-four".