70017992 has 16 divisors (see below), whose sum is σ = 143218800. Its totient is φ = 31826320.

The previous prime is 70017989. The next prime is 70018027. The reversal of 70017992 is 29971007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397742 + ... + 397917.

It is an arithmetic number, because the mean of its divisors is an integer number (8951175).

Almost surely, 2^70017992 is an apocalyptic number.

It is an amenable number.

70017992 is an abundant number, since it is smaller than the sum of its proper divisors (73200808).

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

70017992 is a wasteful number, since it uses less digits than its factorization.

70017992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795676 (or 795672 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 70017992 is about 8367.6754239155. The cubic root of 70017992 is about 412.1638365585.

Adding to 70017992 its reverse (29971007), we get a palindrome (99988999).

The spelling of 70017992 in words is "seventy million, seventeen thousand, nine hundred ninety-two".