70685992 has 64 divisors (see below), whose sum is σ = 154224000. Its totient is φ = 30100224.

The previous prime is 70685981. The next prime is 70685999. The reversal of 70685992 is 29958607.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (70685999) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 68859 + ... + 69877.

It is an arithmetic number, because the mean of its divisors is an integer number (2409750).

Almost surely, 2^70685992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70685992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77112000).

70685992 is an abundant number, since it is smaller than the sum of its proper divisors (83538008).

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

70685992 is a wasteful number, since it uses less digits than its factorization.

70685992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 70685992 is about 8407.4961790060. The cubic root of 70685992 is about 413.4704268330.

The spelling of 70685992 in words is "seventy million, six hundred eighty-five thousand, nine hundred ninety-two".