70687448 has 64 divisors (see below), whose sum is σ = 152409600. Its totient is φ = 30464640.

The previous prime is 70687447. The next prime is 70687451. The reversal of 70687448 is 84478607.

It is a junction number, because it is equal to n+sod(n) for n = 70687399 and 70687408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70687447) 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, 163793 + ... + 164223.

It is an arithmetic number, because the mean of its divisors is an integer number (2381400).

Almost surely, 2^70687448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70687448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76204800).

70687448 is an abundant number, since it is smaller than the sum of its proper divisors (81722152).

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

70687448 is a wasteful number, since it uses less digits than its factorization.

70687448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 70687448 is about 8407.5827679542. The cubic root of 70687448 is about 413.4732657209.

The spelling of 70687448 in words is "seventy million, six hundred eighty-seven thousand, four hundred forty-eight".