70561323 has 54 divisors (see below), whose sum is σ = 123340932. Its totient is φ = 38737440.

The previous prime is 70561319. The next prime is 70561333. The reversal of 70561323 is 32316507.

It is a happy number.

70561323 is a `hidden beast` number, since 70 + 561 + 32 + 3 = 666.

It is not a de Polignac number, because 70561323 - 2² = 70561319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70561303) 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 53 ways as a sum of consecutive naturals, for example, 1156713 + ... + 1156773.

Almost surely, 2^70561323 is an apocalyptic number.

70561323 is a deficient number, since it is larger than the sum of its proper divisors (52779609).

70561323 is a wasteful number, since it uses less digits than its factorization.

70561323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 70561323 is about 8400.0787496309. The cubic root of 70561323 is about 413.2272042963.

The spelling of 70561323 in words is "seventy million, five hundred sixty-one thousand, three hundred twenty-three".