70683021 has 24 divisors (see below), whose sum is σ = 107927040. Its totient is φ = 44452800.

The previous prime is 70683017. The next prime is 70683031. The reversal of 70683021 is 12038607.

It is not a de Polignac number, because 70683021 - 2² = 70683017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70683031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47316 + ... + 48786.

It is an arithmetic number, because the mean of its divisors is an integer number (4496960).

Almost surely, 2^70683021 is an apocalyptic number.

It is an amenable number.

70683021 is a deficient number, since it is larger than the sum of its proper divisors (37244019).

70683021 is a wasteful number, since it uses less digits than its factorization.

70683021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777 (or 1774 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 70683021 is about 8407.3194895876. The cubic root of 70683021 is about 413.4646338991.

The spelling of 70683021 in words is "seventy million, six hundred eighty-three thousand, twenty-one".