70814816 has 12 divisors (see below), whose sum is σ = 139416732. Its totient is φ = 35407392.

The previous prime is 70814813. The next prime is 70814827. The reversal of 70814816 is 61841807.

It is a super-2 number, since 2×70814816² = 10029476330227712, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70814813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106450 + ... + 1106513.

It is an arithmetic number, because the mean of its divisors is an integer number (11618061).

Almost surely, 2^70814816 is an apocalyptic number.

It is an amenable number.

70814816 is a deficient number, since it is larger than the sum of its proper divisors (68601916).

70814816 is a wasteful number, since it uses less digits than its factorization.

70814816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212973 (or 2212965 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 70814816 is about 8415.1539498692. The cubic root of 70814816 is about 413.7214553011.

The spelling of 70814816 in words is "seventy million, eight hundred fourteen thousand, eight hundred sixteen".