70683520 has 64 divisors (see below), whose sum is σ = 170197200. Its totient is φ = 28069888.

The previous prime is 70683493. The next prime is 70683521. The reversal of 70683520 is 2538607.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70683521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114252 + ... + 114868.

Almost surely, 2^70683520 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 70683520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85098600).

70683520 is an abundant number, since it is smaller than the sum of its proper divisors (99513680).

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

70683520 is a wasteful number, since it uses less digits than its factorization.

70683520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 70683520 is about 8407.3491660570. The cubic root of 70683520 is about 413.4656068738.

The spelling of 70683520 in words is "seventy million, six hundred eighty-three thousand, five hundred twenty".