70470869 has 6 divisors (see below), whose sum is σ = 81976374. Its totient is φ = 60403560.

The previous prime is 70470859. The next prime is 70470877. The reversal of 70470869 is 96807407.

It can be written as a sum of positive squares in only one way, i.e., 59830225 + 10640644 = 7735^2 + 3262^2 .

It is not a de Polignac number, because 70470869 - 2⁴ = 70470853 is a prime.

It is a super-2 number, since 2×70470869² = 9932286755230322, 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 (70470809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 719042 + ... + 719139.

It is an arithmetic number, because the mean of its divisors is an integer number (13662729).

Almost surely, 2^70470869 is an apocalyptic number.

It is an amenable number.

70470869 is a deficient number, since it is larger than the sum of its proper divisors (11505505).

70470869 is a wasteful number, since it uses less digits than its factorization.

70470869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438195 (or 1438188 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 70470869 is about 8394.6929068311. The cubic root of 70470869 is about 413.0505539955.

The spelling of 70470869 in words is "seventy million, four hundred seventy thousand, eight hundred sixty-nine".