70499616 has 96 divisors (see below), whose sum is σ = 204192576. Its totient is φ = 21120000.

The previous prime is 70499579. The next prime is 70499641. The reversal of 70499616 is 61699407.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×70499616² = 9940391712294912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106326 + ... + 106986.

It is an arithmetic number, because the mean of its divisors is an integer number (2127006).

Almost surely, 2^70499616 is an apocalyptic number.

70499616 is the 4848-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70499616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102096288).

70499616 is an abundant number, since it is smaller than the sum of its proper divisors (133692960).

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

70499616 is a wasteful number, since it uses less digits than its factorization.

70499616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 70499616 is about 8396.4049449750. The cubic root of 70499616 is about 413.1067112428.

The spelling of 70499616 in words is "seventy million, four hundred ninety-nine thousand, six hundred sixteen".