70878523 has 16 divisors (see below), whose sum is σ = 75441600. Its totient is φ = 66487680.

The previous prime is 70878503. The next prime is 70878527. The reversal of 70878523 is 32587807.

It is a cyclic number.

It is not a de Polignac number, because 70878523 - 2¹⁷ = 70747451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70878527) 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 15 ways as a sum of consecutive naturals, for example, 182013 + ... + 182401.

It is an arithmetic number, because the mean of its divisors is an integer number (4715100).

Almost surely, 2^70878523 is an apocalyptic number.

70878523 is a deficient number, since it is larger than the sum of its proper divisors (4563077).

70878523 is a wasteful number, since it uses less digits than its factorization.

70878523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 70878523 is about 8418.9383534980. The cubic root of 70878523 is about 413.8454832676.

The spelling of 70878523 in words is "seventy million, eight hundred seventy-eight thousand, five hundred twenty-three".