70910669 has 4 divisors (see below), whose sum is σ = 71186844. Its totient is φ = 70634496.

The previous prime is 70910627. The next prime is 70910677. The reversal of 70910669 is 96601907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96601907 = 2887 ⋅33461.

It can be written as a sum of positive squares in 2 ways, for example, as 63282025 + 7628644 = 7955^2 + 2762^2 .

It is a cyclic number.

It is not a de Polignac number, because 70910669 - 2¹² = 70906573 is a prime.

It is a super-2 number, since 2×70910669² = 10056645956055122, 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 (70910369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137702 + ... + 138215.

It is an arithmetic number, because the mean of its divisors is an integer number (17796711).

Almost surely, 2^70910669 is an apocalyptic number.

It is an amenable number.

70910669 is a deficient number, since it is larger than the sum of its proper divisors (276175).

70910669 is a wasteful number, since it uses less digits than its factorization.

70910669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276174.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 70910669 is about 8420.8472851608. The cubic root of 70910669 is about 413.9080384943.

The spelling of 70910669 in words is "seventy million, nine hundred ten thousand, six hundred sixty-nine".