71070677 has 4 divisors (see below), whose sum is σ = 73521420. Its totient is φ = 68619936.

The previous prime is 71070641. The next prime is 71070679. The reversal of 71070677 is 77607017.

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 58354321 + 12716356 = 7639^2 + 3566^2 .

It is a cyclic number.

It is not a de Polignac number, because 71070677 - 2⁶ = 71070613 is a prime.

It is a super-2 number, since 2×71070677² = 10102082258476658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71070679) 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, 1225328 + ... + 1225385.

It is an arithmetic number, because the mean of its divisors is an integer number (18380355).

Almost surely, 2^71070677 is an apocalyptic number.

It is an amenable number.

71070677 is a deficient number, since it is larger than the sum of its proper divisors (2450743).

71070677 is a wasteful number, since it uses less digits than its factorization.

71070677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450742.

The product of its (nonzero) digits is 14406, while the sum is 35.

The square root of 71070677 is about 8430.3426383511. The cubic root of 71070677 is about 414.2191287076.

The spelling of 71070677 in words is "seventy-one million, seventy thousand, six hundred seventy-seven".