70706491 has 8 divisors (see below), whose sum is σ = 72723200. Its totient is φ = 68706792.

The previous prime is 70706479. The next prime is 70706497. The reversal of 70706491 is 19460707.

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

It is a cyclic number.

It is not a de Polignac number, because 70706491 - 2⁵ = 70706459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70706497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4426 + ... + 12688.

It is an arithmetic number, because the mean of its divisors is an integer number (9090400).

Almost surely, 2^70706491 is an apocalyptic number.

70706491 is a deficient number, since it is larger than the sum of its proper divisors (2016709).

70706491 is a wasteful number, since it uses less digits than its factorization.

70706491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8505.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 70706491 is about 8408.7151812866. The cubic root of 70706491 is about 413.5103918994.

The spelling of 70706491 in words is "seventy million, seven hundred six thousand, four hundred ninety-one".