70384869 has 20 divisors (see below), whose sum is σ = 105556044. Its totient is φ = 46738944.

The previous prime is 70384861. The next prime is 70384871. The reversal of 70384869 is 96848307.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48650625 + 21734244 = 6975^2 + 4662^2 .

It is not a de Polignac number, because 70384869 - 2³ = 70384861 is a prime.

It is a super-2 number, since 2×70384869² = 9908059568294322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70384861) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20869 + ... + 24005.

Almost surely, 2^70384869 is an apocalyptic number.

It is an amenable number.

70384869 is a deficient number, since it is larger than the sum of its proper divisors (35171175).

70384869 is a wasteful number, since it uses less digits than its factorization.

70384869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426 (or 3417 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 70384869 is about 8389.5690592545. The cubic root of 70384869 is about 412.8824618083.

It can be divided in two parts, 70384 and 869, that added together give a triangular number (71253 = T₃₇₇).

The spelling of 70384869 in words is "seventy million, three hundred eighty-four thousand, eight hundred sixty-nine".