70573638 has 16 divisors (see below), whose sum is σ = 148576320. Its totient is φ = 22286376.

The previous prime is 70573631. The next prime is 70573667. The reversal of 70573638 is 83637507.

It is a junction number, because it is equal to n+sod(n) for n = 70573596 and 70573605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70573631) 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 7 ways as a sum of consecutive naturals, for example, 309420 + ... + 309647.

It is an arithmetic number, because the mean of its divisors is an integer number (9286020).

Almost surely, 2^70573638 is an apocalyptic number.

70573638 is an abundant number, since it is smaller than the sum of its proper divisors (78002682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70573638 is a wasteful number, since it uses less digits than its factorization.

70573638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619091.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 70573638 is about 8400.8117464921. The cubic root of 70573638 is about 413.2512429471.

The spelling of 70573638 in words is "seventy million, five hundred seventy-three thousand, six hundred thirty-eight".