70803681 has 32 divisors (see below), whose sum is σ = 105463680. Its totient is φ = 41969664.

The previous prime is 70803647. The next prime is 70803697. The reversal of 70803681 is 18630807.

It is not a de Polignac number, because 70803681 - 2⁶ = 70803617 is a prime.

It is a super-2 number, since 2×70803681² = 10026322486299522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70803611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200401 + ... + 200753.

It is an arithmetic number, because the mean of its divisors is an integer number (3295740).

Almost surely, 2^70803681 is an apocalyptic number.

It is an amenable number.

70803681 is a deficient number, since it is larger than the sum of its proper divisors (34659999).

70803681 is a wasteful number, since it uses less digits than its factorization.

70803681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 70803681 is about 8414.4923198016. The cubic root of 70803681 is about 413.6997694914.

The spelling of 70803681 in words is "seventy million, eight hundred three thousand, six hundred eighty-one".