8061691 has 8 divisors (see below), whose sum is σ = 8833968. Its totient is φ = 7296000.

The previous prime is 8061679. The next prime is 8061721. The reversal of 8061691 is 1961608.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8061691 - 2⁵ = 8061659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8061611) 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, 1131 + ... + 4171.

It is an arithmetic number, because the mean of its divisors is an integer number (1104246).

Almost surely, 2^8061691 is an apocalyptic number.

8061691 is a deficient number, since it is larger than the sum of its proper divisors (772277).

8061691 is a wasteful number, since it uses less digits than its factorization.

8061691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 8061691 is about 2839.3117123697. The cubic root of 8061691 is about 200.5127758477.

The spelling of 8061691 in words is "eight million, sixty-one thousand, six hundred ninety-one".