70521086 has 8 divisors (see below), whose sum is σ = 105886560. Its totient is φ = 35225568.

The previous prime is 70521079. The next prime is 70521089. The reversal of 70521086 is 68012507.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70521089) 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, 14891 + ... + 19046.

It is an arithmetic number, because the mean of its divisors is an integer number (13235820).

Almost surely, 2^70521086 is an apocalyptic number.

70521086 is a deficient number, since it is larger than the sum of its proper divisors (35365474).

70521086 is a wasteful number, since it uses less digits than its factorization.

70521086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34978.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 70521086 is about 8397.6833710256. The cubic root of 70521086 is about 413.1486429175.

The spelling of 70521086 in words is "seventy million, five hundred twenty-one thousand, eighty-six".