70487706 has 16 divisors (see below), whose sum is σ = 141910848. Its totient is φ = 23340000.

The previous prime is 70487693. The next prime is 70487717. The reversal of 70487706 is 60778407.

It is a happy number.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 37995 + ... + 39806.

It is an arithmetic number, because the mean of its divisors is an integer number (8869428).

Almost surely, 2^70487706 is an apocalyptic number.

70487706 is an abundant number, since it is smaller than the sum of its proper divisors (71423142).

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

70487706 is a wasteful number, since it uses less digits than its factorization.

70487706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77957.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 70487706 is about 8395.6956829080. The cubic root of 70487706 is about 413.0834469174.

It can be divided in two parts, 704 and 87706, that added together give a triangular number (88410 = T₄₂₀).

The spelling of 70487706 in words is "seventy million, four hundred eighty-seven thousand, seven hundred six".