70028818 has 4 divisors (see below), whose sum is σ = 105043230. Its totient is φ = 35014408.

The previous prime is 70028809. The next prime is 70028863. The reversal of 70028818 is 81882007.

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., 69672409 + 356409 = 8347^2 + 597^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17507203 + ... + 17507206.

Almost surely, 2^70028818 is an apocalyptic number.

70028818 is a deficient number, since it is larger than the sum of its proper divisors (35014412).

70028818 is a wasteful number, since it uses less digits than its factorization.

70028818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35014411.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 70028818 is about 8368.3222930286. The cubic root of 70028818 is about 412.1850780310.

The spelling of 70028818 in words is "seventy million, twenty-eight thousand, eight hundred eighteen".