70941661 has 8 divisors (see below), whose sum is σ = 82731200. Its totient is φ = 60806844.

The previous prime is 70941641. The next prime is 70941667. The reversal of 70941661 is 16614907.

It is not a de Polignac number, because 70941661 - 2⁹ = 70941149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70941667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103071 + ... + 103756.

It is an arithmetic number, because the mean of its divisors is an integer number (10341400).

Almost surely, 2^70941661 is an apocalyptic number.

It is an amenable number.

70941661 is a deficient number, since it is larger than the sum of its proper divisors (11789539).

70941661 is an equidigital number, since it uses as much as digits as its factorization.

70941661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206848 (or 206834 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 70941661 is about 8422.6872790102. The cubic root of 70941661 is about 413.9683301717.

The spelling of 70941661 in words is "seventy million, nine hundred forty-one thousand, six hundred sixty-one".