70999648 has 24 divisors (see below), whose sum is σ = 142421328. Its totient is φ = 34829184.

The previous prime is 70999631. The next prime is 70999681. The reversal of 70999648 is 84699907.

It is a super-2 number, since 2×70999648² = 10081900032247808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70999595 and 70999604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19236 + ... + 22627.

It is an arithmetic number, because the mean of its divisors is an integer number (5934222).

Almost surely, 2^70999648 is an apocalyptic number.

It is an amenable number.

70999648 is an abundant number, since it is smaller than the sum of its proper divisors (71421680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70999648 is a wasteful number, since it uses less digits than its factorization.

70999648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41926 (or 41918 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 70999648 is about 8426.1288857933. The cubic root of 70999648 is about 414.0810906370.

The spelling of 70999648 in words is "seventy million, nine hundred ninety-nine thousand, six hundred forty-eight".