70814688 has 48 divisors (see below), whose sum is σ = 212446080. Its totient is φ = 20232576.

The previous prime is 70814683. The next prime is 70814699. The reversal of 70814688 is 88641807.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70814683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52018 + ... + 53361.

It is an arithmetic number, because the mean of its divisors is an integer number (4425960).

Almost surely, 2^70814688 is an apocalyptic number.

It is an amenable number.

70814688 is an abundant number, since it is smaller than the sum of its proper divisors (141631392).

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

70814688 is a wasteful number, since it uses less digits than its factorization.

70814688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105399 (or 105391 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 70814688 is about 8415.1463445385. The cubic root of 70814688 is about 413.7212060295.

The spelling of 70814688 in words is "seventy million, eight hundred fourteen thousand, six hundred eighty-eight".