70702261 has 8 divisors (see below), whose sum is σ = 83589120. Its totient is φ = 58512048.

The previous prime is 70702231. The next prime is 70702271. The reversal of 70702261 is 16220707.

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

It is not a de Polignac number, because 70702261 - 2⁹ = 70701749 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 (70702231) 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, 173941 + ... + 174346.

It is an arithmetic number, because the mean of its divisors is an integer number (10448640).

Almost surely, 2^70702261 is an apocalyptic number.

It is an amenable number.

70702261 is a deficient number, since it is larger than the sum of its proper divisors (12886859).

70702261 is a wasteful number, since it uses less digits than its factorization.

70702261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348323.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 70702261 is about 8408.4636527727. The cubic root of 70702261 is about 413.5021456794.

Adding to 70702261 its reverse (16220707), we get a palindrome (86922968).

The spelling of 70702261 in words is "seventy million, seven hundred two thousand, two hundred sixty-one".