70509992 has 16 divisors (see below), whose sum is σ = 151092960. Its totient is φ = 30218544.

The previous prime is 70509953. The next prime is 70509997. The reversal of 70509992 is 29990507.

It is not an unprimeable number, because it can be changed into a prime (70509997) by changing a digit.

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, 629498 + ... + 629609.

It is an arithmetic number, because the mean of its divisors is an integer number (9443310).

Almost surely, 2^70509992 is an apocalyptic number.

It is an amenable number.

70509992 is an abundant number, since it is smaller than the sum of its proper divisors (80582968).

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

70509992 is a wasteful number, since it uses less digits than its factorization.

70509992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259120 (or 1259116 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 70509992 is about 8397.0228057330. The cubic root of 70509992 is about 413.1269770032.

The spelling of 70509992 in words is "seventy million, five hundred nine thousand, nine hundred ninety-two".