70020718 has 4 divisors (see below), whose sum is σ = 105031080. Its totient is φ = 35010358.

The previous prime is 70020701. The next prime is 70020721. The reversal of 70020718 is 81702007.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81702007 = 197 ⋅414731.

It is a junction number, because it is equal to n+sod(n) for n = 70020692 and 70020701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17505178 + ... + 17505181.

It is an arithmetic number, because the mean of its divisors is an integer number (26257770).

Almost surely, 2^70020718 is an apocalyptic number.

70020718 is a deficient number, since it is larger than the sum of its proper divisors (35010362).

70020718 is a wasteful number, since it uses less digits than its factorization.

70020718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35010361.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 70020718 is about 8367.8383110574. The cubic root of 70020718 is about 412.1691853934.

The spelling of 70020718 in words is "seventy million, twenty thousand, seven hundred eighteen".