70523472 has 20 divisors (see below), whose sum is σ = 182185760. Its totient is φ = 23507808.

The previous prime is 70523449. The next prime is 70523489. The reversal of 70523472 is 27432507.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734572 + ... + 734667.

It is an arithmetic number, because the mean of its divisors is an integer number (9109288).

Almost surely, 2^70523472 is an apocalyptic number.

It is an amenable number.

70523472 is an abundant number, since it is smaller than the sum of its proper divisors (111662288).

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

70523472 is a wasteful number, since it uses less digits than its factorization.

70523472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469250 (or 1469244 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 70523472 is about 8397.8254328129. The cubic root of 70523472 is about 413.1533023349.

Adding to 70523472 its reverse (27432507), we get a palindrome (97955979).

The spelling of 70523472 in words is "seventy million, five hundred twenty-three thousand, four hundred seventy-two".