70020663 has 8 divisors (see below), whose sum is σ = 93979776. Its totient is φ = 46371000.

The previous prime is 70020653. The next prime is 70020677. The reversal of 70020663 is 36602007.

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

It is not a de Polignac number, because 70020663 - 2⁵ = 70020631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70020653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76833 + ... + 77738.

It is an arithmetic number, because the mean of its divisors is an integer number (11747472).

Almost surely, 2^70020663 is an apocalyptic number.

70020663 is a deficient number, since it is larger than the sum of its proper divisors (23959113).

70020663 is a wasteful number, since it uses less digits than its factorization.

70020663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154725.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 70020663 is about 8367.8350246644. The cubic root of 70020663 is about 412.1690774763.

The spelling of 70020663 in words is "seventy million, twenty thousand, six hundred sixty-three".