70028306 has 4 divisors (see below), whose sum is σ = 105042462. Its totient is φ = 35014152.

The previous prime is 70028293. The next prime is 70028311. The reversal of 70028306 is 60382007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60382007 = 7 ⋅8626001.

It can be written as a sum of positive squares in only one way, i.e., 67387681 + 2640625 = 8209^2 + 1625^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17507075 + ... + 17507078.

Almost surely, 2^70028306 is an apocalyptic number.

70028306 is a deficient number, since it is larger than the sum of its proper divisors (35014156).

70028306 is a wasteful number, since it uses less digits than its factorization.

70028306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35014155.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 70028306 is about 8368.2917014167. The cubic root of 70028306 is about 412.1840734956.

The spelling of 70028306 in words is "seventy million, twenty-eight thousand, three hundred six".