70009912 has 16 divisors (see below), whose sum is σ = 150021360. Its totient is φ = 30004224.

The previous prime is 70009909. The next prime is 70009913. The reversal of 70009912 is 21990007.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70009913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625033 + ... + 625144.

It is an arithmetic number, because the mean of its divisors is an integer number (9376335).

Almost surely, 2^70009912 is an apocalyptic number.

It is an amenable number.

70009912 is an abundant number, since it is smaller than the sum of its proper divisors (80011448).

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

70009912 is a wasteful number, since it uses less digits than its factorization.

70009912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250190 (or 1250186 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 70009912 is about 8367.1925996716. The cubic root of 70009912 is about 412.1479815294.

Adding to 70009912 its reverse (21990007), we get a palindrome (91999919).

The spelling of 70009912 in words is "seventy million, nine thousand, nine hundred twelve".