70896641 has 4 divisors (see below), whose sum is σ = 70935252. Its totient is φ = 70858032.

The previous prime is 70896629. The next prime is 70896643. The reversal of 70896641 is 14669807.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61465600 + 9431041 = 7840^2 + 3071^2 .

It is a cyclic number.

It is not a de Polignac number, because 70896641 - 2¹⁸ = 70634497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70896643) 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, 16406 + ... + 20271.

It is an arithmetic number, because the mean of its divisors is an integer number (17733813).

Almost surely, 2^70896641 is an apocalyptic number.

It is an amenable number.

70896641 is a deficient number, since it is larger than the sum of its proper divisors (38611).

70896641 is a wasteful number, since it uses less digits than its factorization.

70896641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38610.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 70896641 is about 8420.0143111517. The cubic root of 70896641 is about 413.8807427198.

The spelling of 70896641 in words is "seventy million, eight hundred ninety-six thousand, six hundred forty-one".