94687081 has 4 divisors (see below), whose sum is σ = 96996564. Its totient is φ = 92377600.

The previous prime is 94687069. The next prime is 94687111. The reversal of 94687081 is 18078649.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32592681 + 62094400 = 5709^2 + 7880^2 .

It is a cyclic number.

It is not a de Polignac number, because 94687081 - 2⁵ = 94687049 is a prime.

It is a super-2 number, since 2×94687081² = 17931286616601122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94687031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154680 + ... + 1154761.

It is an arithmetic number, because the mean of its divisors is an integer number (24249141).

Almost surely, 2^94687081 is an apocalyptic number.

It is an amenable number.

94687081 is a deficient number, since it is larger than the sum of its proper divisors (2309483).

94687081 is a wasteful number, since it uses less digits than its factorization.

94687081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309482.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 94687081 is about 9730.7286983042. The cubic root of 94687081 is about 455.7887233650.

The spelling of 94687081 in words is "ninety-four million, six hundred eighty-seven thousand, eighty-one".